The Silurians and Sea Devils are two fictional related ancient species created by
Malcolm Hulke
Malcolm Ainsworth Hulke (21 November 1924 – 6 July 1979) was a British television writer and author of the industry "bible" ''Writing for Television in the 70s''. He is remembered chiefly for his work on the science fiction series ''Doctor Wh ...
for the long-running British
science fiction television
Science fiction first appeared in television programming in the late 1930s, during what is called the Golden Age of Science Fiction. Special effects and other production techniques allow creators to present a living visual image of an imaginary ...
series ''
Doctor Who
''Doctor Who'' is a British science fiction television series broadcast by the BBC since 1963. The series, created by Sydney Newman, C. E. Webber and Donald Wilson (writer and producer), Donald Wilson, depicts the adventures of an extraterre ...
''. The Silurians are a race of scientifically advanced
reptilian humanoid
Reptilian humanoids, or anthropomorphic reptiles, also called reptiloids, etc., appear in folklore, fiction, and conspiracy theories.
In folklore
In South Asian and Southeast Asian mythology, the Nāga are semi-divine creatures which are ...
s from
the dawn of man which first appeared in ''Doctor Who'' in Hulke's 1970 serial ''
Doctor Who and the Silurians
''Doctor Who and the Silurians'' is the second serial of the seventh season in the British science fiction television series ''Doctor Who''. It was first broadcast in seven weekly parts on BBC1 from 31 January to 14 March 1970.
The serial is s ...
''. The Sea Devils are similar to the Silurians, but hail from the oceans and are aquatic, having debuted in the serial ''
The Sea Devils'' (1972). Both species then reappeared in the 1984 serial ''
Warriors of the Deep
''Warriors of the Deep'' is the first serial of the 21st season of the British science fiction television series ''Doctor Who'', which was broadcast in four twice-weekly parts on BBC1 from 5 to 13 January 1984.
In the serial, two human power b ...
'', which was the final appearance of both races prior to the show's cancellation in 1989. Following the show's revival in 2005, heavily redesigned Silurians were reintroduced to the series in 2010, and have recurred frequently since then. The Sea Devils were reintroduced in 2022, with their designs mostly unchanged.
Working under producer
Terrance Dicks
Terrance William Dicks (14 April 1935 – 29 August 2019) was an English author and television screenwriter, script editor and producer. In television, he had a long association with the BBC science-fiction series ''Doctor Who'', working as a ...
, Hulke came up with the idea of the Silurians to accommodate the show's need for more imaginative science fiction storylines during
a period when its title character,
the Doctor
The Doctor, sometimes known as Doctor Who, is the protagonist of the long-running BBC science fiction television series ''Doctor Who''. An extraterrestrial Time Lord, the Doctor travels the universe in a time travelling spaceship called th ...
, was confined to present-day Earth. The Sea Devils were made out of a desire to bring the Silurian concept back. The further re-appearance of the pair in ''Warriors of the Deep'' was done out of a desire to bring back more antagonists following the series' twentieth anniversary. The species' redesign and re-appearance in the revived era was done to bring out the humanity in the species and allow the actors' performances to shine through, with a desire to update the Silurians to modern-day standards and expand on the concepts introduced in their original serials. Conversely, the Sea Devils' return did its best to stay as loyal to the original design of the creatures as possible.
The Silurians and Sea Devils' concept have been highlighted, and both monsters debut stories are praised, though they were considered largely forgotten monsters until the Silurians' return in the revived era. In 2018, the notion of a pre-human intelligent reptilian or amphibious species was explored by the real-life scientists
Adam Frank
Adam Frank (born 1962) is an American physicist, astronomer, and writer. His scientific research has focused on computational astrophysics with an emphasis on star formation and late stages of stellar evolution. His work includes studies of exop ...
and
Gavin Schmidt
Gavin A. Schmidt is a British climatologist, climate modeler and Director of the NASA Goddard Institute for Space Studies (GISS) in New York, and co-founder of the climate science blog RealClimate.
Work
He was educated at The Corsham School, e ...
, who dubbed the concept the "
Silurian hypothesis". The Sea Devils are set to play a major role in the spin-off series ''
The War Between the Land and the Sea''.
Appearances
Television
''
Doctor Who
''Doctor Who'' is a British science fiction television series broadcast by the BBC since 1963. The series, created by Sydney Newman, C. E. Webber and Donald Wilson (writer and producer), Donald Wilson, depicts the adventures of an extraterre ...
'' is a long-running British
science-fiction television
Science fiction first appeared in television programming in the late 1930s, during what is called the Golden Age of Science Fiction. Special effects and other production techniques allow creators to present a living visual image of an imaginary ...
series that began in 1963. It stars its protagonist,
The Doctor
The Doctor, sometimes known as Doctor Who, is the protagonist of the long-running BBC science fiction television series ''Doctor Who''. An extraterrestrial Time Lord, the Doctor travels the universe in a time travelling spaceship called th ...
, an alien who travels through time and space in a ship known as the
TARDIS
The TARDIS (; acronym for "Time And Relative Dimension(s) In Space") is a fictional hybrid of a time machine and spacecraft that appears in the British science fiction television series ''Doctor Who'' and its various spin-offs. While a TARDI ...
, as well as their travelling
companions. When the Doctor dies, they are able to undergo a process known as "
regeneration", completely changing the Doctor's appearance and personality. Throughout their travels, the Doctor often comes into conflict with various
alien species
An introduced species, alien species, exotic species, adventive species, immigrant species, foreign species, non-indigenous species, or non-native species is a species living outside its native distributional range, but which has arrived there ...
and antagonists.
The Silurians and Sea Devils are a race of reptilian humanoids from the dawn of time. The species was highly technologically advanced, and their computers detected that a planet-like object would collide with Earth. To survive, they put themselves into
hibernation
Hibernation is a state of minimal activity and metabolic reduction entered by some animal species. Hibernation is a seasonal heterothermy characterized by low body-temperature, slow breathing and heart-rate, and low metabolic rate. It is mos ...
, but as the planet-like object, the
Moon
The Moon is Earth's only natural satellite. It Orbit of the Moon, orbits around Earth at Lunar distance, an average distance of (; about 30 times Earth diameter, Earth's diameter). The Moon rotation, rotates, with a rotation period (lunar ...
, never crashed into the Earth, the Silurians' computers never awoke them, leaving them trapped in hibernation.
In their first appearance in ''
Doctor Who and the Silurians
''Doctor Who and the Silurians'' is the second serial of the seventh season in the British science fiction television series ''Doctor Who''. It was first broadcast in seven weekly parts on BBC1 from 31 January to 14 March 1970.
The serial is s ...
'' (1970), a group of Silurians are awakened from hibernation by the energy from a nearby nuclear power research center in
Derbyshire
Derbyshire ( ) is a ceremonial county in the East Midlands of England. It borders Greater Manchester, West Yorkshire, and South Yorkshire to the north, Nottinghamshire to the east, Leicestershire to the south-east, Staffordshire to the south a ...
. The
Third Doctor
The Third Doctor is an incarnation of The Doctor (Doctor Who), the Doctor, the protagonist of the British Science fiction on television, science fiction television series ''Doctor Who''. He was portrayed by actor Jon Pertwee. Within the series' ...
(
Jon Pertwee
John Devon Roland Pertwee (; 7 July 1919 – 20 May 1996), known professionally as Jon Pertwee, was an English actor. Born into a theatrical family, he became known as a comedy actor, playing Chief Petty Officer Pertwee (and three other roles) in ...
) initially manages to negotiate an honourable compromise with the colony's leader. Unfortunately, the colony's leader is murdered by a younger Silurian who becomes the new leader, intent on a far more aggressive policy. To that end, the Silurians then attempt to reclaim the planet from humanity by releasing a deadly bacteria and attempting to disperse the
Van Allen radiation belt
The Van Allen radiation belt is a zone of energetic charged particles, most of which originate from the solar wind, that are captured by and held around a planet by that planet's magnetosphere. Earth has two such belts, and sometimes others ma ...
. Both plans were thwarted by the Doctor. Despite the Doctor's best efforts to broker a peaceful solution, the Silurians are still determined to exterminate humanity, resulting in
Brigadier Lethbridge-Stewart
Sir Alistair Gordon Lethbridge-Stewart, generally referred to simply as the Brigadier, is a fictional character in the British science fiction television series ''Doctor Who'', created by writers Mervyn Haisman and Henry Lincoln and played by Ni ...
(
Nicholas Courtney
William Nicholas Stone Courtney (16 December 1929 – 22 February 2011) was an Egyptian-born British actor. He was best known for his long-running role as Brigadier Lethbridge-Stewart in the BBC science fiction television series ''Doctor Who''. ...
) blowing up their base to stop their plans.
In ''
The Sea Devils'' (1972), the Sea Devils, an amphibious variety of Silurians, are awakened from their hibernation by a renegade
Time Lord
The Time Lords are a fictional ancient race of extraterrestrial life, extraterrestrial people in the British science fiction television series ''Doctor Who''. Time Lords are so named for their command of time travel technology and their Nonli ...
known as
the Master (
Roger Delgado
Roger Caesar Marius Bernard de Delgado Torres Castillo Roberto (1 March 1918 – 18 June 1973) was an English actor. He played many roles on television, radio and in films, and had "a long history of playing minor villains" before becoming ...
), who persuades them to reclaim the planet from the human race. Despite the Third Doctor's efforts to convince them otherwise, the Sea Devils eventually decide to go to war, forcing the Doctor to destroy their base. It is revealed, however, that there were many colonies still in hibernation around the world. Both species, together, in "
Warriors of the Deep
''Warriors of the Deep'' is the first serial of the 21st season of the British science fiction television series ''Doctor Who'', which was broadcast in four twice-weekly parts on BBC1 from 5 to 13 January 1984.
In the serial, two human power b ...
" (1984), attempt again to reclaim Earth from the humans. Set in the year 2084 during a prolonged "
cold war
The Cold War was a period of global Geopolitics, geopolitical rivalry between the United States (US) and the Soviet Union (USSR) and their respective allies, the capitalist Western Bloc and communist Eastern Bloc, which lasted from 1947 unt ...
" between factions of humanity, the pair attempt to fire an undersea base's nuclear weapons, which would cause the humans to destroy each other in retaliation for the initial strike. The
Fifth Doctor
The Fifth Doctor is an incarnation of the Doctor, the protagonist of the British science fiction television series ''Doctor Who''. He is portrayed by Peter Davison.
Within the series' narrative, the Doctor is a centuries-old alien Time Lord ...
(
Peter Davison
Peter Malcolm Gordon Moffett (born 13 April 1951), known professionally as Peter Davison, is an English actor. He made his television acting debut in 1975 and became famous in 1978 as Tristan Farnon in the BBC's television adaptation of Jame ...
) attempts to make peace with them, but is unable to, forcing him to flood the base with hexachromite gas to stop them. While he attempts to save the Silurians, he is unable to succeed, leaving all of them dead by the serial's end.
Silurians are reintroduced to the series, following its cancellation and revival, in the 2010 two-part story, "
The Hungry Earth" and "
Cold Blood", in which Silurians are awoken in 2020 by an underground drilling operation. Having misinterpreted the drilling as a deliberate attack, the Silurians take hostages. After a protracted conflict, the
Eleventh Doctor
The Eleventh Doctor is an incarnation (otherwise known as regeneration) of the Doctor, the protagonist of the British science fiction television series ''Doctor Who''. He is played by Matt Smith in three series as well as five specials. As wi ...
(
Matt Smith
Matthew Robert Smith (born 28 October 1982) is an English actor. He is known for playing the Eleventh Doctor in the BBC science fiction television series ''Doctor Who'' (2010–2013), Prince Philip in Netflix's historical series ''The Crown ( ...
) leaves behind Tony Mack (
Robert Pugh
Robert Pugh (born 3 November 1948) is a Welsh actor, known for his many television appearances, including the role of Craster in the HBO series ''Game of Thrones''.
Life and career
Pugh was born in Tyntetown, Mountain Ash and attended Ynysbo ...
) and Nasreen Chaudhry (
Meera Syal
Meera Syal FRSL (born Feroza Syal; 27 June 1961) is an English comedian, writer, playwright, singer, journalist and actress. She rose to prominence as one of the team that created '' Goodness Gracious Me'' and by portraying Sanjeev's grandmoth ...
) in the Silurian city to act as ambassadors to the human race when they re-awaken in a thousand years.
Following this appearance, the Silurians make various cameo appearances. Some appear in "
The Pandorica Opens" (2010), as one of the species who arrived to imprison the Doctor in the Pandorica. A Silurian appears in "
The Wedding of River Song
"The Wedding of River Song" is the thirteenth and final episode in the sixth series of the British science fiction television series ''Doctor Who'', and was first broadcast on BBC One on 1 October 2011. It was written by lead writer and executive ...
" (2011) in a timeline where all of history is happening at once. A Silurian appears in "
Dinosaurs on a Spaceship
"Dinosaurs on a Spaceship" is the second episode of the seventh series of the British science fiction television programme ''Doctor Who''. It first aired on BBC One in the UK on 8 September 2012 and on BBC America on the same date in the Unite ...
" (2012), where it is revealed they sent Arks into space to search for a new planet to inhabit, but that the Silurians on board were killed prior to the episode's events by a hunter named Solomon (
David Bradley) who sought to procure the ship's dinosaur cargo for himself. A Silurian appears in "
Joy to the World
"Joy to the World" is an English hymn and Christmas carol. It was written in 1719 by the English minister and hymnist Isaac Watts. It is usually sung to the American composer Lowell Mason's 1848 arrangement of a tune attributed to George Fride ...
" (2024) where one acts as a manager to a hotel that lets visitors stay at places throughout history. The Silurian is killed by the villainous
Villengard Corporation.
Recurring character
Madame Vastra (
Neve McIntosh) is introduced in "
A Good Man Goes to War" (2011) as a Silurian detective in the Victorian era, who befriended the Doctor after a brief rampage on the London Underground. She lives with her human wife
Jenny Flint (
Catrin Stewart),
and after "A Good Man Goes To War", also employs the
Sontaran
The Sontarans ( ) are a fictional race of extraterrestrial life, extraterrestrial humanoids principally portrayed in the British science fiction on television, science fiction television programme ''Doctor Who'' and its spin-off series ''The Sa ...
Strax (
Dan Starkey) as her butler, forming the trio known as the
Paternoster Gang. She re-appears in several subsequent episodes alongside the pair.
The Sea Devils re-appeared in the 2022 special "
Legend of the Sea Devils", a
Thirteenth Doctor
The Thirteenth Doctor is an incarnation of the Doctor, the protagonist of the BBC science fiction television series ''Doctor Who''. She is played by Jodie Whittaker, the first woman to portray the character, in three series, five specials and a ...
(
Jodie Whittaker
Jodie Auckland Whittaker (born 17 June 1982) is an English actress. She is best known for her roles on television as Beth Latimer in ''Broadchurch'' (2013–2017) and the Thirteenth Doctor in ''Doctor Who'' (2017–2022, 2025).
She came to pro ...
) story. In the serial, a Sea Devil named Marsissus attempts to reclaim an artefact known as the Keystone, but he and his crew of Sea Devils are killed in an explosion orchestrated by the Thirteenth Doctor. The Sea Devils are expected to return in the upcoming spin-off series ''
The War Between the Land and the Sea''.
The Silurians have additionally appeared in various novels, comics, and audio dramas since their debut. Silurian merchandise depicting the original design include busts, different kinds of figurines, and cards.
Sea Devil figurines, statues, cards, and other merchandise have been produced throughout the years.
Creation and development
1970s serials
Drawing on the ideas of the
Quatermass
Professor Bernard Quatermass is a fictional scientist originally created by writer Nigel Kneale for BBC Television. An intelligent and highly moral British scientist, Quatermass is a pioneer of the British space programme, heading the British E ...
serials, producer
Peter Bryant
Peter Bryant (27 October 1923 – 19 May 2006) was an English television producer, script editor and former actor. He acted in '' The Grove Family'' as a regular cast member and later became the producer of '' Doctor Who'' from 1967 to 19 ...
and producer and script editor
Derrick Sherwin
Derrick George Sherwin (16 April 1936 – 17 October 2018) was an English television producer, writer, story editor and actor. After beginning his career in the theatre, Sherwin became an actor in television before moving into writing. He becam ...
decided that for the series'
seventh season, the show's
protagonist
A protagonist () is the main character of a story. The protagonist makes key decisions that affect the plot, primarily influencing the story and propelling it forward, and is often the character who faces the most significant obstacles. If a ...
the Doctor
The Doctor, sometimes known as Doctor Who, is the protagonist of the long-running BBC science fiction television series ''Doctor Who''. An extraterrestrial Time Lord, the Doctor travels the universe in a time travelling spaceship called th ...
should be restricted to contemporary Earth and work alongside the
UNIT
Unit may refer to:
General measurement
* Unit of measurement, a definite magnitude of a physical quantity, defined and adopted by convention or by law
**International System of Units (SI), modern form of the metric system
**English units, histo ...
organisation, featured prominently in the
sixth season's serial ''
The Invasion''. Producer
Barry Letts
Barry Leopold Letts (26 March 1925 – 9 October 2009) was an English actor, television director, writer and producer, best known for being the producer of ''Doctor Who'' from 1969 to 1974.
Born in Leicester, he worked as an actor in theatre, ...
and script editor
Terrance Dicks
Terrance William Dicks (14 April 1935 – 29 August 2019) was an English author and television screenwriter, script editor and producer. In television, he had a long association with the BBC science-fiction series ''Doctor Who'', working as a ...
, inheriting this new vision for the series, also wanted their stories for the seventh season to have a serious, deeper subtext. They approached
Malcolm Hulke
Malcolm Ainsworth Hulke (21 November 1924 – 6 July 1979) was a British television writer and author of the industry "bible" ''Writing for Television in the 70s''. He is remembered chiefly for his work on the science fiction series ''Doctor Wh ...
, co-writer of the
Patrick Troughton
Patrick George Troughton (; 25 March 1920 – 28 March 1987) was an English actor. He became best known for his roles in television, most notably starring as the Second Doctor, second incarnation of The Doctor (Doctor Who), the Doctor in the lo ...
serials ''
The Faceless Ones
''The Faceless Ones'' is the Doctor Who missing episodes, mostly missing eighth serial of the Doctor Who (season 4), fourth season in the British science fiction television series ''Doctor Who'', which was first broadcast in six weekly parts fro ...
'' (1967) and ''
The War Games
''The War Games'' is the seventh and final serial of the sixth season of the British science fiction television series ''Doctor Who'', which originally aired in ten weekly parts from 19 April to 21 June 1969.
In the serial, an unnamed alien r ...
'' (1969), to write a serial for this new season.
Dicks requested a story that took place in caves; Hulke saw limitations with this earthbound format, as he believed there would be two types of stories, one featuring mad scientists and the other alien invasions.
Terrance Dicks claims credit for thinking of the idea of creatures that had been there all along;
though ''The Complete History'' claims Hulke came up with the idea. The two settled on the name "Silurian", believing it conveyed a "monstrous" nature for the species.
The Silurians' name was a misnomer, as the species was stated to hail from a period that was not the
Silurian era.
Though the subsequent serial featuring the Sea Devils attempted to rectify this by suggesting "Eocenes" as an alternative name, this too was inaccurate to the Silurians' time of origin.
Another alternate name suggested for the species was "homo reptilia".
The original Silurian costumes were made by visual effects designer James Ward, with the costumes being based on sketches designed by BBC Staff Director
Timothy Combe Timothy Combe (born 17 October 1936) is a retired British television director and actor's agent. As a director of BBC television drama from the late 1960s to the late 1970s, he worked on series such as ''Doctor Who'', ''Z-Cars'' and '' The Brothers' ...
. Combe suggested the idea for the species to have a third eye.
The costumes were hot to wear. Some of the costumes had lights fitted into the masks, allowing them to flash on and off, while the masks of the Silurians played by important characters having a peg that would move when the actors spoke.
The Silurians in the original serial were portrayed by a variety of actors, with the leader Silurian portrayed by Dave Carter, the young Silurian portrayed by Nigel Johns, and the scientist portrayed by
Pat Gorman
William Patrick Gorman (10 May 1933 – 9 October 2018) was a British actor known in particular for his many small roles in the science fiction programme ''Doctor Who''.
Early life
Gorman was born in the East End of London on March 10, 1933. H ...
, with their voices done by
Peter Halliday
Peter Halliday (2 June 1924 – 18 February 2012) was a Welsh actor.
Early life
The son of an auctioneer and estate agent, Halliday was brought up in Welshpool in Montgomeryshire, and attended Oswestry School in Shropshire. On leaving school ...
.
While planning stories for ''Doctor Who''s
ninth season, Dicks and Letts decided to revive the Silurian concept, being impressed with the original concept. They wanted the Silurians to this time originate from the sea. Originally dubbed "Sea Silurians", they were rechristened "Sea Devils" for dramatic effect as Hulke's storyline was edited. The Sea Devils were originally planned to be naked like the Silurians, but director
Michael E. Briant was uncomfortable with the idea, leading to the Sea Devils wearing string vests in the final episode,
which were leftover from another show and hastily applied to the Sea Devils.
The Sea Devils have a turtle-like head, with their heads sculpted by designer John Friedlander.
Friedlander gave each head distinctive "webbing" to set them apart from each other, with small slits in the neck being used for the actors to see out of.
The Sea Devils' guns were made with aluminum disks, with flash wool and gunpowder being used for them to simulate being fired, though this meant each Sea Devil could only fire their weapon once per take.
A scene in which Sea Devils emerged from the waves was done by filling the Sea Devil masks with water, as they failed to go underwater otherwise; this led to the actors nearly drowning in the process.
The episode's chief Sea Devil was portrayed by actor Peter Forbes-Robertson.
''Warriors of the Deep'' (1984)
The 1984 season of ''Doctor Who'' followed the series' twentieth anniversary celebrations, and the production team wanted to mine the series' past for further antagonists to bring back. This resulted in the decision to bring the Silurians and Sea Devils back, appearing on-screen together for the first time.
Writer
Johnny Byrne was told to write serial ''
Warriors of the Deep
''Warriors of the Deep'' is the first serial of the 21st season of the British science fiction television series ''Doctor Who'', which was broadcast in four twice-weekly parts on BBC1 from 5 to 13 January 1984.
In the serial, two human power b ...
'' (1984) as a return for both the Silurians and the Sea Devils.
After re-watching the original episodes, Byrne came up with the idea of the Sea Devils being a more militaristic force for the Silurians.
Redesign of the species was primarily done by Judy Pepperdine. The Silurians were redesigned to resemble an updated version of the original Silurian costume, with various departments working together to make the various aspects of the design. The Silurians' third eye was altered to glow when they spoke, while the eyeholes in the masks were redesigned to address actor complaints from the original serial.
The Sea Devils were redesigned, with their string vests replaced by
samurai
The samurai () were members of the warrior class in Japan. They were originally provincial warriors who came from wealthy landowning families who could afford to train their men to be mounted archers. In the 8th century AD, the imperial court d ...
-styled armor,
which was done to give them more bulk.
The Sea Devils' masks were based on an original mask from their debut serial that was on display at an exhibition. Radio control was added to allow the masks to blink.
The masks for both creatures had major ventilation issues, resulting in the actors needing to be cooled down between takes, as the serial was filmed during a major heat wave. The masks sometimes were not buckled into costume correctly, and the Sea Devil masks would occasionally lean over or obscure actor vision, leading to Sea Devils bumping into each other during filming.
The Silurians had names, with the primary Silurian, Ichtar, being stated to be a Silurian from the original serial; the other two Silurians were named Scibus and Tarpok, with the latter's name being changed from Tanpon during production. Many script changes were made to ensure the continuity made sense between both Silurian serials; a reference to Ichtar discussing the
Time Lord
The Time Lords are a fictional ancient race of extraterrestrial life, extraterrestrial people in the British science fiction television series ''Doctor Who''. Time Lords are so named for their command of time travel technology and their Nonli ...
s and the
TARDIS
The TARDIS (; acronym for "Time And Relative Dimension(s) In Space") is a fictional hybrid of a time machine and spacecraft that appears in the British science fiction television series ''Doctor Who'' and its various spin-offs. While a TARDI ...
was cut, as Ichtar would not have been able to know this information.
The voices for both the Silurians and the Sea Devils were added in post-production. Actor Norman Comer portrays Ichtar, while Stuart Blake and Vincent Brimble portray Scibus and Tarpok, respectively. Various actors portray the Sea Devils.
Revived series
The return of the Silurians in 2010's "
The Hungry Earth" and "
Cold Blood" was a request by series showrunner
Steven Moffat
Steven William Moffat (; born 18 November 1961) is a Scottish television writer, television producer and screenwriter. He is best known for his work as the second showrunner and head writer of the 2005 revival of the BBC sci-fi television ser ...
, who asked writer
Chris Chibnall
Christopher Antony Chibnall (born 21 March 1970) is an English television writer and producer, best known as the creator and writer of the award-winning ITV (TV network), ITV mystery-crime drama ''Broadchurch'' (2013-17) and as the third showr ...
to produce a script involving the species and a drill.
Moffat stated the concept of the Silurians was a "movie franchise idea", and was inspired enough by the idea to want them to return to the series.
Chibnall wrote the species as if audiences were completely unfamiliar with them, believing that a mainstream audience would likely not remember the species from the last time they had appeared on-screen.
Moffat emphasized that they wanted to redesign the Silurians "for 2010".
Chibnall, inspired by the usage of the phrase "homo reptilia", included male and female Silurians, instead of just male Silurians as had happened previously.
When redesigning the Silurians for the revived era of the series, design team Millenium FX assumed the design of the creatures would be an upscale of the original Silurian design from the classic era of the show.
Moffat briefed Chibnall on how he wanted the Silurians to appear, stating that he envisioned the group in the two-parter as a "different branch" of the originals so that this new interpretation did not undermine the original Silurian stories. Chibnall's script stated that the species had to be "beautiful", with Moffat wanting to drop the Silurians' third eye to avoid confusion with antagonist
Davros
Davros () is a fictional Character (arts), character from the long-running British science fiction on television, science fiction television series ''Doctor Who''. He was created by screenwriter Terry Nation, originally for the 1975 serial '' ...
, who also sported one.
The Silurians' voice modulation, present in previous stories, was also dropped.
As Chibnall's script developed, however, designer Neil Gorton found that the humanity within the creatures would need to be better expressed. This resulted in the final humanoid design, which largely used prosthetics and makeup to convey the reptilian features of the species while letting the human actors emote with their own faces. Aspects of the Sea Devils' string vests and samurai armor were incorporated into the Silurians' clothing.
Other aspects of the Silurians' new designs included heat ray devices, which resembled those used by the Sea Devils, a venomous tongue, which Chibnall added so children could imitate the Silurians at the playground, and grey "warrior masks". The masks were created to cut down on prosthetics costs, as prosthetics were more expensive than other monster designs, which often only required a mask or costume. Chibnall additionally enjoyed the masks due to their ability to enhance the existing Silurian design. The Sea Devils were discussed to be brought back, but Chibnall decided against it, believing it would cause too much confusion within the story, and devalue the concept of "mirroring" between the humans and Silurians.
Several female supporting artists were hired to portray the Silurians, with reptilian body language being rehearsed, including motions such as sniffing to communicate, to add character to the Silurians.
Actress
Neve McIntosh portrays Silurian sisters Restac and Alaya in the two parter. Her performance in the episodes led to her return as Silurian
Madame Vastra in subsequent episodes.
The Sea Devils would eventually return in the 2022 episode "
Legend of the Sea Devils". Unlike the Silurians, the Sea Devils retained largely the same design they had in their original appearances.
The design team discussed how much the Sea Devils should resemble the original design, with the final design being the result of much discussion. The Sea Devils were made slightly shorter to account for lead actress
Jodie Whittaker
Jodie Auckland Whittaker (born 17 June 1982) is an English actress. She is best known for her roles on television as Beth Latimer in ''Broadchurch'' (2013–2017) and the Thirteenth Doctor in ''Doctor Who'' (2017–2022, 2025).
She came to pro ...
being shorter than former lead
Jon Pertwee
John Devon Roland Pertwee (; 7 July 1919 – 20 May 1996), known professionally as Jon Pertwee, was an English actor. Born into a theatrical family, he became known as a comedy actor, playing Chief Petty Officer Pertwee (and three other roles) in ...
, who had originally fought them in their debut serial. The Sea Devils also had different costuming, which resembled pirate costumes, though aspects of their original netted clothing was included throughout the design. An original plaster cast from ''Warriors of the Deep'' was used to evaluate measurements of the new design. Episode co-writer
Ella Road stated that despite the status of the Sea Devils as returning monsters, she and the rest of the team had "loads of creative freedom" with them. The episode's titular Sea Devil, Marsissus, was portrayed by actor Craige Els, who had previously portrayed
Karvanista in the series. Other Sea Devils were portrayed by various other actors.
Reception
In a review for the ''
Radio Times
''Radio Times'' is a British weekly listings magazine devoted to television and radio programme schedules, with other features such as interviews, film reviews and lifestyle items. Founded in September 1923 by John Reith, then general manage ...
'', writer Mark Braxton stated that the original appearance of the Silurians, though held back by the cumbersome costumes used for the creatures, was effectively used by Hulke, with Braxton stating that "as a species they mirror our own suspicion, hatred and general insecurity."
''
Slant Magazine
''Slant Magazine'' is an American online publication that features reviews of movies, music, TV, DVDs, theater, and video games, as well as interviews with actors, directors, and musicians. The site covers various film festivals like the New Yor ...
'' highlighted how the Silurians were portrayed as "individuals", unlike other monsters in the series, which allowed them to have more interesting characterization and relationships. The book ''The Doctor's Monsters: Meanings of the Monstrous in Doctor Who'' similarly states that the Silurians were highly memorable antagonists as a result of the fact that the species was not uniform nor evil, despite their physical appearance. It highlighted ''Warriors of the Deep'' for expanding on the original Silurian story by showing that, while violence was not the answer to the human and Silurian conflict, it showed via its mass deaths that violence between both sides would only lead to further violence instead of a viable solution.
Susannah Lydon, writing for ''
The Guardian
''The Guardian'' is a British daily newspaper. It was founded in Manchester in 1821 as ''The Manchester Guardian'' and changed its name in 1959, followed by a move to London. Along with its sister paper, ''The Guardian Weekly'', ''The Guardi ...
'', considered the Silurians to be an example of how
speculative fiction
Speculative fiction is an umbrella term, umbrella genre of fiction that encompasses all the subgenres that depart from Realism (arts), realism, or strictly imitating everyday reality, instead presenting fantastical, supernatural, futuristic, or ...
engages with non-scientist audiences, highlighting their existence as part of a concept of "sleek, reptilian humanoids" existing in the
Dinosaur era.
At the time of the Silurians' return to the modern series, the species had been largely forgotten by the general public, which ''The Guardian'' stated was emphasized by the lack of significant marketing or leaks regarding the species' return to the series.
Their new design initially sparked some controversy among fans of the series, who disliked the sheer difference between the new and old Silurian designs. ''Slant Magazine'' highlighted the new design as helping to avoid the "man in a rubber suit" trope of the original design while bringing out the performance of the actor portraying the Silurian, though felt the new design could have incorporated more "alien" elements like the Silurians' third eye in order to appear less human.
The design of the Silurians in the revived series was emphasized by the book ''Once Upon a Time Lord: The Myths and Stories of Doctor Who'' as symbolizing a "revitalization of the established mythology" in a respectful manner, which it felt was further emphasized by Madame Vastra, who acts as one of the series' first on-screen
lesbian
A lesbian is a homosexual woman or girl. The word is also used for women in relation to their sexual identity or sexual behavior, regardless of sexual orientation, or as an adjective to characterize or associate nouns with female homosexu ...
characters.
The book ''New Dimensions of Doctor Who: Adventures in Space, Time and Television'' cited the Silurians as an example of the changing idea behind redesigns within the series; whereas prior to the Silurians' return, returning aliens tended to preserve the iconic or recognizable aspects of the species, the Silurians underwent a total redesign to instead emphasize other aspects of their character.
In contrast, ''The Doctor's Monsters: Meanings of the Monstrous in Doctor Who'' stated that the use of prosthetics removed the alien aspects of the Silurians' designs and made them instead resemble humans with makeup; it felt that this weakened the strength of the Silurians, as it felt the Silurians' monstrous aspects yet human personalities were key aspects of the relationship between them and humans that were lost through the design change.
The book ''Who is Who?: The Philosophy of Doctor Who'' discussed the Silurians' relationship with the concept of the philosophical
Other, which the book identifies as being the largest barrier between human and Silurian co-habitation in the series. It identifies a scene in "Cold Blood" where the Doctor attempts to broker peace between the two species, an occasion where the Doctor is willing to change history, as the character attempting to defy
Georg Wilhelm Friedrich Hegel
Georg Wilhelm Friedrich Hegel (27 August 1770 – 14 November 1831) was a 19th-century German idealist. His influence extends across a wide range of topics from metaphysical issues in epistemology and ontology, to political philosophy and t ...
's idea that two sides seeking recognition will end with either side attempting to enslave or kill the other. The book ''New Dimensions of Doctor Who: Adventures in Space, Time and Television'' also analyzed the Silurians' role in this episode, analyzing how
Murray Gold
Murray Jonathan Gold (born 28 February 1969) is an English composer for stage, film, and television and a dramatist for both theatre and radio. He is best known as the musical director and composer of the music for ''Doctor Who'' from 2005–201 ...
's musical score emphasizes the scenes featuring the Silurians.
The Sea Devils have been considered an iconic monster, with their debut serial being stated by ''Radio Times'' as having "gave British kids the shudders during their seaside holidays."
''The Guardian'' regarded the Sea Devils as being a "design classic". In a review for ''Radio Times,'' reviewer Patrick Mulkern praised the decision to bring back the Sea Devils in "Legend of the Sea Devils", but criticized their use in the episode, believing that they didn't get any proper opportunities to be scary antagonists.
Chris Allcock, in a review for ''
Den of Geek
''Den of Geek'' is a UK and US-based website covering entertainment with a focus on pop culture. The website also issues a biannual magazine.
History
''Den of Geek'' was founded in 2007 by Simon Brew in London. In 2012, DoG Tech LLC licensed ' ...
'', stated that while the use of the old Sea Devil design gave the creatures a sense of weight, the execution of the costumes had "mixed results".
In 2018, the notion of a pre-human intelligent reptilian or amphibious species was explored by the real-life scientists
Adam Frank
Adam Frank (born 1962) is an American physicist, astronomer, and writer. His scientific research has focused on computational astrophysics with an emphasis on star formation and late stages of stellar evolution. His work includes studies of exop ...
and
Gavin Schmidt
Gavin A. Schmidt is a British climatologist, climate modeler and Director of the NASA Goddard Institute for Space Studies (GISS) in New York, and co-founder of the climate science blog RealClimate.
Work
He was educated at The Corsham School, e ...
, who dubbed the concept the "
Silurian hypothesis", named after the creatures.
References
{{Silurian stories
Doctor Who aliens
Fictional reptilians
Television characters introduced in 1970
Fictional endangered and extinct species