Mister X or Mr. X is commonly used as a

pseudonym A pseudonym (; ) or alias () is a fictitious name that a person or group assumes for a particular purpose, which differs from their original or true name (orthonym). This also differs from a new name that entirely or legally replaces an individua ...

for someone whose name is secret or unknown. Mister X may refer to:

Comics

Mister X (Marvel Comics) Mister X is a fictional character, a supervillain appearing in American comic books published by Marvel Comics. The character was introduced in ''Wolverine (comic book), Wolverine'' vol. 2 #159 (Feb. 2001). His Henchman, henchmen include T & A (n ...

, a supervillain in the Marvel Universe * ''Mister X'' (Vortex), the protagonist in Dean Motter's comic book series of that title * The Amazing Mr X (comics), Britain's first superhero, who first appeared in ''The Dandy'' comic in 1944

Video games

* Mr. X (''Resident Evil''), antagonist first appearing in the 1998 video game ''Resident Evil 2'' * A villain in the video game series '' Streets of Rage'' * The villain in the video game '' The Ship'' * The final villain in the video game '' Kung-Fu Master'' * The pseudonym of Dr. Wily in ''

Mega Man 6 ''Mega Man 6'', known in Japan as の戦, たたかい!!, Rokkuman Shikkusu: Shijō Saidai no Tatakai!!, group=lower-alpha, lead=yes, is an Action game, action-Platform game, platform video game developed by Capcom for the Nintendo Entertainmen ...

'' **Xander Payne, a character from the ''Mega Man'' Archie comics * The pseudonym of Olga Gurlukovich during the Big Shell Incident in '' Metal Gear Solid 2: Sons of Liberty''

Film and television

* ''Mister X'' (1958 film), a 1958 Soviet musical film directed by Yuli Khmelnitsky * ''Mister X'' (1967 film), a 1967 Italian superhero film directed by Piero Vivarelli also known as ''Avenger X'' * ''Mr. X'' (1987 film), a 1987 Bollywood sci-fi film starring Amol Palekar directed by Khwaja Ahmad Abbas * ''Mr. X'' (2015 film), a 2015 Bollywood sci-fi film starring Emraan Hashmi * Mr. X, a recurring puppet on '' The Canadian Howdy Doody Show'' * Mr. X, a recurring arch-criminal of comic Arabic films played by

Fouad el-Mohandes Fouad Zaki Mohamed el-Mohandes ar, فؤاد زكي محمد المهندس; known as Fouad el-Mohandes (or Fuad el-Mohandess; ar, فؤاد المهندس; September 6, 1924 – September 16, 2006) was an Egyptian stage and screen actor, and st ...

* Mr. X, in the animated series ''

The X's ''The X's'' is an American animated television series created by Carlos Ramos for Nickelodeon. The series centers on a family of spies who must conceal their identity from the outside world, but often have trouble in doing so. It had a single ...

'' * Mr. X, a villain in the anime series ''Lupin III'' * Mr. X (''Simpsons''), Homer's pseudonym in ''The Simpsons'' episode "The Computer Wore Menace Shoes" * X (''The X-Files''), a character in the television series ''The X-Files'' * ''

The Amazing Mr. X ''The Amazing Mr. X'', also known as ''The Spiritualist'', is a 1948 American horror thriller film noir directed by Bernard Vorhaus with cinematography by John Alton. The film tells the story of a phony spiritualist racket. The film is prominen ...

'', a.k.a. ''The Spiritualist'', a 1948 thriller film * Mr. X, the main character in the 1940s and 1950s radio and TV series ''

The Man Called X ''The Man Called X'' is an espionage radio drama that aired on CBS and NBC from July 10, 1944, to May 20, 1952. The radio series was later adapted for television and was broadcast for one season, 1956–1957. People Herbert Marshall had the lead ...

'' * Mr. X, an assassin in the 2008 film '' Wanted'', played by David O'Hara * Mr. X, a character who appears in the ''Fringe'' episode "

Lysergic Acid Diethylamide Lysergic acid diethylamide (LSD), also known colloquially as acid, is a potent psychedelic drug. Effects typically include intensified thoughts, emotions, and sensory perception. At sufficiently high dosages LSD manifests primarily mental, vi ...

" * Mr. X, the pseudonym for Goofy in the animated short ''

Aquamania ''Aquamania'' is a 1961 American animated Goofy cartoon produced by Walt Disney Productions and released by Buena Vista Distribution on December 20, 1961. This cartoon was the last from Disney's "Golden Era" which featured Goofy as a solo star, a ...

'' * Mr. X, a ''Teenage Mutant Ninja Turtles'' character associated with Mondo Gecko * The placeholder name the farmer is given when he gets amnesia in the ''

Shaun the Sheep Movie ''Shaun the Sheep Movie'' is a 2015 stop-motion animated adventure comedy film based on the 2007 British television series ''Shaun the Sheep'', created by Nick Park, in turn a spin-off of the ''Wallace and Gromit'' film, ''A Close Shave'' (1995) ...

'' * Mr. X, a secondary character in ''Big Time Rush'' * Mr. X (''Amphibia'' character), a character in ''Amphibia'' ** "Mr. X" (''Amphibia'' episode), the character's eponymous debut episode

Music

* Mister X (band), a street punk group from Belarus * "Mr X", a song by Ultravox from their album ''

Vienna en, Viennese , iso_code = AT-9 , registration_plate = W , postal_code_type = Postal code , postal_code = , timezone = CET , utc_offset = +1 , timezone_DST ...

'' * "Mr X", a song and single by Pauline Murray And The Invisible Girls * Mister X, a character in the operetta ''

Die Zirkusprinzessin ' (''The Circus Princess'') is an operetta in three acts by Hungarian composer Emmerich Kálmán to a German libretto by Julius Brammer and Alfred Grünwald. It premiered at the Theater an der Wien in Vienna on 26 March 1926 and went on to 344 ...

'' (''The Circus Princess'') by Emmerich Kálmán * Mr.X, American DJ also known as

Afrika Islam Charles Andre Glenn (born 1967), professionally known by his stage name Afrika Islam, is an American hip hop DJ and producer. He was one of the pioneers of hip hop culture and the hip hop radio station. He began his musical career in 1977 as a ...

* Mr. X, mystery music composer of the film ''

Enai Noki Paayum Thota ''Enai Noki Paayum Thota'' () is a 2019 Indian Tamil-language action thriller film written, directed and co-produced by Gautham Vasudev Menon. The film features Dhanush, Megha Akash, Sasikumar and Sunaina. The film began production in Marc ...

'' * Mr. X, drummer formerly in the band

The Meatmen The Meatmen are an American punk band headed by Tesco Vee, originally existing from 1981 to 1988, before reforming in the mid-1990s, and again in the 2000s. They were known for their outrageous stage antics and offensive lyrics. They reformed ...

* Mr. X, a character from '' God in Three Persons''

Pseudonymous uses

* Donald Graves (Kremlinologist) (1929–2008), U.S. State Department analyst, from the 1982 Washington Post article "The Secret Files of Mr. X" *

George F. Kennan George Frost Kennan (February 16, 1904 – March 17, 2005) was an American diplomat and historian. He was best known as an advocate of a policy of containment of Soviet expansion during the Cold War. He lectured widely and wrote scholarly hist ...

(1904–2005), American historian, in his essay "The Sources of Soviet Conduct" * Carl Sagan (1934–1996), American astronomer, in an essay on his experiences with marijuana *

Norman Wexler Norman Wexler (August 16, 1926 – August 23, 1999) was an American screenwriter whose work included films such as ''Saturday Night Fever'', ''Serpico'' and '' Joe''. A New Bedford, Massachusetts native and 1944 Central High School gradua ...

(1926–1999), American screenwriter, in Bob Zmuda's ''Andy Kaufman Revealed'' *

Gaston Defferre Gaston Defferre (14 September 1910 – 7 May 1986) was a French Socialist politician. He served as mayor of Marseille for 33 years until his death in 1986. He was minister for overseas territories in Guy Mollet’s socialist government in 1956� ...

(1910–1986), French Politician, using this pseudonym during the 1965 Presidential Elections *

Ben Zygier Ben Zygier was an Australian-Israeli citizen who was a veteran of the Israel Defense Forces and allegedly an agent of Mossad. He was imprisoned in Ayalon Prison, Ramla, Israel and died in custody in 2010, reportedly by hanging himself in a maxi ...

, a prisoner who was held in Israel * The former longtime boyfriend of American radio talk show host,

Robin Quivers Robin Ophelia Quivers (born August 8, 1952) is an American radio personality, author, and actress, best known for being the long-running co-host of ''The Howard Stern Show''. Early life Quivers was born on August 8, 1952, in Baltimore, Maryla ...

Other uses

Aeros Mister X The Aeros Mister X is a Ukrainian single-place, paraglider that was designed and produced by Aeros of Kyiv Kyiv, also spelled Kiev, is the capital and most populous city of Ukraine. It is in north-central Ukraine along the Dnieper River ...

, a Ukrainian paraglider * "Mr. X", nickname of American golfer

Miller Barber Miller Westford Barber, Jr. (March 31, 1931 – June 11, 2013) was an American professional golfer who enjoyed significant success on the PGA Tour in the 1960s and 1970s, and a greater degree of success on the Senior PGA Tour (now the Champions ...

(1931–2013) * Mr. X, a masked professional wrestler in the 1930s and 1940s, one of the identities of

Cyclone Mackey Corbin James Massey (July 19, 1903 – December 30, 1979) was an American professional wrestler known under a number of ring names such as Cyclone Mackey, Ciclón McKey, ''La Maravilla Emmascarada'', Mr. X, The Grey Mask and The Yellow Mask. Masse ...

* Mr. X, a masked professional wrestler in the WWF in the 1970s, one of the identities of Jerry Balisok * Mr. X, a masked professional wrestler in the WWF in the 1980s, one of the identities of

Dan Marsh Daniel Davis (born March 28, 1956) is an American former professional wrestling referee and wrestler best known under the ring name "Dangerous" Danny Davis when he worked for the World Wrestling Federation (WWF). For years, he competed as Mr. X, ...

* ''Mr. X'' (Straub novel), a novel by Peter Straub * Mr. X, a player character in the board game '' Scotland Yard'' and its spin-off, ''Mister X'' * Mister X, an alias used by Mayuka Kondō in the manga and anime series, ''