''Quiz of God'' () is a

South Korean television series Korean drama (), also known as K-drama or Koreanovela, refers to Korean-language television shows made in South Korea. These shows began to be produced around the early 1960s, but were mostly consumed domestically until the rise of the Korean Wa ...

broadcast on cable channel OCN. It was the first

medical Medicine is the science and Praxis (process), practice of caring for patients, managing the Medical diagnosis, diagnosis, prognosis, Preventive medicine, prevention, therapy, treatment, Palliative care, palliation of their injury or disease, ...

forensic Forensic science combines principles of law and science to investigate criminal activity. Through crime scene investigations and laboratory analysis, forensic scientists are able to link suspects to evidence. An example is determining the time and ...

crime In ordinary language, a crime is an unlawful act punishable by a State (polity), state or other authority. The term ''crime'' does not, in modern criminal law, have any simple and universally accepted definition,Farmer, Lindsay: "Crime, definiti ...

investigation drama to air in Korea. The series follows genius but eccentric

neurosurgeon Neurosurgery or neurological surgery, known in common parlance as brain surgery, is the medical specialty that focuses on the surgical treatment or rehabilitation of disorders which affect any portion of the nervous system including the brain, ...

and forensic doctor Han Jin-woo (played by

Ryu Deok-hwan Ryu Deok-hwan (; born June 12, 1987) is a South Korean actor. Career Ryu Deok-hwan began his career as a child actor on stage at age 6. Among his early TV drama appearances was a role on the popular ''Lifetime in the Country'' which he played ...

) and his team as they solve suspicious deaths and unravel mysteries involving rare diseases. The title refers to a local saying that rare diseases are like quizzes God gives to humans so as not to become too arrogant. The first season dealt mostly with inherited rare diseases including

porphyria Porphyria ( or ) is a group of disorders in which substances called porphyrins build up in the body, adversely affecting the skin or nervous system. The types that affect the nervous system are also known as Porphyria#Acute porphyrias, acute p ...

phenylketonuria Phenylketonuria (PKU) is an inborn error of metabolism that results in decreased metabolism of the amino acid phenylalanine. Untreated PKU can lead to intellectual disability, seizures, behavioral problems, and mental disorders. It may also r ...

muscular dystrophy Muscular dystrophies (MD) are a genetically and clinically heterogeneous group of rare neuromuscular diseases that cause progressive weakness and breakdown of skeletal muscles over time. The disorders differ as to which muscles are primarily affe ...

Guillain–Barré syndrome Guillain–Barré syndrome (GBS) is a rapid-onset Paralysis, muscle weakness caused by the immune system damaging the peripheral nervous system. Typically, both sides of the body are involved, and the initial symptoms are changes in sensation ...

, reflex anoxic seizures and

Savant syndrome Savant syndrome ( , ) is a phenomenon where someone demonstrates exceptional aptitude in one domain, such as art or mathematics, despite significant social or intellectual impairment. Those with the condition generally have a neurodevel ...

Fabry disease Fabry disease, also known as Anderson–Fabry disease, is a rare genetic disease that can affect many parts of the body, including the kidneys, heart, brain, and skin. Fabry disease is one of a group of conditions known as lysosomal storage dis ...

Kleine–Levin syndrome Kleine–Levin syndrome (KLS) is a rare neurological disorder characterized by persistent episodic hypersomnia accompanied by cognitive and behavioral changes. These changes may include disinhibition (failure to inhibit actions or words), sometime ...

and

congenital insensitivity to pain Congenital insensitivity to pain (CIP), also known as congenital analgesia, is an inability for a person to feel physical pain due to various rare genetic conditions. CIP is caused by genetic mutations that affect the development or function of no ...

with

anhidrosis Hypohidrosis is a medical condition in which a person exhibits diminished sweating in response to appropriate stimuli. In contrast with hyperhidrosis, which is a socially troubling yet often benign condition, the consequences of untreated hypohidr ...

were featured in the second season.

Series overview

Cast

Main

as Jin-woo Han, neurosurgeon and forensic doctor * Yoon Joo-hee as Kyung-hee Kang, detective *

Choi Jung-woo Choi Jung-woo (; February 17, 1957 – May 27, 2025) was a South Korean actor. He began his acting career in theater, then became active as a supporting actor in film and television, notably in the sitcom '' Standby'' and the procedural drama ...

as Kyu-tae Jang * Park Joon-myun as Young-shil Jo,

medical examiner The medical examiner is an appointed official in some American jurisdictions who is trained in pathology and investigates deaths that occur under unusual or suspicious circumstances, to perform post-mortem examinations, and in some jurisdicti ...

* Kim Dae-jin as Seong-do Kim, forensic scientist *

Ahn Nae-sang Ahn Nae-sang (; born December 25, 1964) is a South Korean actor. He began his career on the stage, and in 1994 made his film debut in the Bong Joon-ho short film ''Baeksekin'' ("White Man" or "White-collar worker"), followed by Jang Sun-woo's ...

as Tae-shik Bae *

Lee Donghae Lee Dong-hae (born October 15, 1986), referred to as Donghae, is a South Korean singer, songwriter, and actor. He became a trainee under SM Entertainment after winning a prize at SM's ''Youth Best Contest'' in 2001. After four years of training ...

as Han Shi-woo *

Kim Jae-kyung Kim Jae-kyung (; born December 24, 1988) is a South Korean actress and former singer. Before transitioning to acting full-time, she was a member and leader of the South Korean girl group Rainbow (South Korean band), Rainbow. Early life and edu ...

as Im Tae-kyung *

Yoon Bo-ra Yoon Bo-ra (; born December 30, 1989), better known by the mononym Bora, is a South Korean singer, rapper, and actress. She is a former member of the South Korean girl group Sistar and its sub-group Sistar19. Early life and education Bora wa ...

as Jung Seung-bin * Park Hyo-joo as Moon Soo-an *

Kim Jaewon Kim JaewonThe actor indicates a preference of spelling his name "Jaewon" (without a space or hyphen) on hiofficial website. (born 18 February 1981) is a South Korean actor. He is best known for the television dramas '' Romance'' (2002), '' Liste ...

as Hyeon Sang-pil

Recurring

* Park Da-an as Go Yoon-jung * Kim Geon-woo as Nam Joo-nam * Chu Seung-wook as Park Seung-wook * Park Ji-a as Seo Yeon-joo *

Ahn Yong-joon Ahn Yong-joon (born November 22, 1987) is a South Korean actor. Filmography Television series * ''Under the Queen's Umbrella'' (2022); Cameo (episode 12) * '' The Secret House'' (2022) * ''Tunnel'' (2017) * '' Make Your Wish'' (MBC, 2014) * ' ...

as Jung Ha-yoon * Lee Seol-hee as Min Ji-yool * Kim Se-hyun as Cha Woo-bin * Lee Ha-rin as Lee Young-eun *

Park Hee-von Park Hee-von (; born May 11, 1983), birth name Park Jae-young, is a South Korean actress, singer and model. Park made her entertainment debut in 2001 as a member of a girl group named M.I.L.K. under SM Entertainment's short-lived subsidiary BM ...

as Lee Ran * Han Seo-jin as Yoo So-yi * Kang Sung-pil as Nam Ki-yong * Han Seung-hyun as Gu Doo-jin * Seo Yoo-jung as Shin Yeon-hwa * Yoon Jin-young as Jo Il-yeob *

Choi Go Choi Go is a South Korean child actor and model. He is known for his roles in dramas such as ''Nobody Knows'', '' My Country: The New Age'', and ''Her Private Life''. He is best known for his role in the drama ''Memorials A memorial is an ...

as Han Jin-woo * Kim Jun-han as Kwak Hyeok-min * Han Ji-wan as Hong Na-yeo *

Kwon Eun-soo Kwon Eun-soo (; born February 4, 1989) is a South Korean actress and model. She is best known for her lead roles in ''If You Were Me 4'' as So-young and ''Wild Flowers'' as Eun-soo. She also did a supporting role and appeared in the famous and p ...

as Kim Han-sook *

Go Geon-han Go Geon-han is a South Korean actor and model. He is known for his roles in dramas such as '' Clean with Passion for Now'', '' The Tale of Nokdu'' and '' Sweet Home''. He also appeared in movies '' Friend: The Great Legacy'' and ''The Battle of ...

as Kang Soo-ha's son * Kim Ki-doo as Nam Sang-bok * Yoo Jung-rae as Lim Si-hyun

Guest appearances

* Kim Seung-yeon as psychic * Kim Tae-woo as Jae-seok (ep. 1) * Kim Byung-ok as entertainment company CEO (ep. 2) * Park No-shik as Choi Kyung-ho (ep. 3) * Lee Ji-eun as Hong Seong-mi (ep. 3) * Lim Hwa-young as Yeo-rang (ep. 4) * Im Je-no as Joon-seo (ep. 5) *

Jung Eun-pyo Jung Eun-pyo (; born March 27, 1966) is a South Korean actor. He is active in both stage and screen since 1990, notably in the film ''Kilimanjaro'' (for which he won Best Supporting Actor at the Grand Bell Awards) and the television dramas ''Mo ...

as gynecologist (ep. 6) * Lee Dal-hyung (ep. 7) * Seo Ji-seung as Shi-eun (ep. 8) *

as Jung Ha-yoon (ep. 9–10) *

Yoo Hae-jung Yoo Hae-jung (; born October 9, 2000) is a South Korean actress. Filmography Television series Film Awards and nominations References External links

* * * 2000 births Living people South Korean television actresses South Kor ...

as Eun-ok, abused child * Choi Sang-hak * Han Yeo-wool * Han Yeong-gwang as Lee Kyeong-seok * Lee Kyeong-in as Deok-hoon * Seo Han-gyeol *

Lee Han-wi Lee Han-wi (born June 17, 1961) is a South Korean actor. Since his acting debut in 1983, Lee has become a prolific supporting actor on Korean film and television. He is particularly known for his mastery of ad-libbing. Personal life Lee marr ...

as chief of police * Kim Jong-seok * Kim Jeong-gyoon * Kang Seong-min as Jang in-ho (ep. 3) *

Oh Kwang-rok Oh Kwang-rok (born August 28, 1962) is a South Korean actor. Filmography Film Television series Theater References External links Oh Kwang-rokat SidusHQ iHQ Inc., doing business as SidusHQ () is one of the leading tale ...

as Boss *

Lee Il-hwa Lee Il-hwa (; born January 29, 1972) is a South Korean actress. She made her acting debut in 1991, and has since appeared in numerous television drama In film and television show, television, drama is a category or genre of narrative fict ...

as Hwang Kyu-ri (ep. 5) *

Jeon Moo-song Jeon Moo-song (born September 28, 1941) is a South Korean actor. Jeon began his career on stage in the play 'Chunhyangjeon' in 1964 and has since been active in Korean theatre, film and television. In 1977, he performed as the title character ...

as a priest (ep. 12) * Park Dae-won * Yoo Jae-myung as Anesthesiologist Lee *

Park Jae-jung Park Jae-jung (born June 24, 1980) is a South Korean actor. He played the leading role in the television dramas '' You Are My Destiny'' (2008) and ''Joseon Mystery Detective Jeong Yak-yong'' (2009). Park also appeared in the second season of re ...

as Park Jong-min * Kim Ga-eun as Yoon So-jung * Hong So-hee as Shin Hee-soo * Jung Joon-won as Woo-ram (ep. 4) * Alexander Lee as Lee Han-seo (ep. 6) * Yang Ohn-yoo as young Han-seo (ep. 6) * Choi Ah-ra as Chae-kyung *

Go Kyung-pyo Go Kyung-pyo (; born June 11, 1990) is a South Korean actor. He gained recognition for his roles in the television series ''Reply 1988'' (2015–16), '' Don't Dare to Dream'' (2016), and '' Chicago Typewriter'' (2017). He has since transitioned ...

as Seo In-gak (ep. 10–12) * Kang Bit * Moon Ji-young as Mi-kyung * Yoon Joo-hee as Kang Kyung-hee (ep. 12) * Lee Yoo as Min Ji-hee * Lee Do-yeon as Da-mi *

Jang Seung-jo Jang Hyun-deok (; born December 13, 1981), known professionally as Jang Seung-jo, is a South Korean actor, known for his roles in ''Money Flower'' (2017–2018), ''Snowdrop'' (2021-2022),''Familiar Wife'' (2018) and ''Encounter (South Korean TV ...

as Lee Jae-joon * Lee Soo-yong as Park Jung-wook/Panna Nuen *

Cho Hye-jung Cho Hae-jung (; born December 22, 1992) is a South Korean actress. She is known for her role in 2017 TV series ''Weightlifting Fairy Kim Bok-joo''. Early life and education Cho was born to Cho Jae-hyun and his college sweetheart on December 2 ...

as Jung Mi-hyang (ep. 1) * Kim Jin-geun as Mi-hyang's father (ep. 1) * Lim Yoon-ho as Ko Kyung-han (ep. 2) *

Park Min-ji Park Min-ji (; born July 22, 1989) is a South Korean actress. Filmography Film Television series References External links * * {{DEFAULTSORT:Park, Min-ji 1989 births Actresses from Seoul Living people People from Nowon District Sou ...

as Park Ha-young (ep. 2) * Song Ji-hyun as Ahn Hee-yeon (ep. 3) *

Hwang Seung-eon Hwang Seung-eon (; born October 31, 1988) is a South Korean actress, model and singer. She was a member of the co-ed project group Temporary Idols under YG Entertainment. She has appeared in numerous films, television series, variety shows, and ...

as Ahn Hyo-yeon (ep. 3) * Choi Tae-hwan as Lee Soo-yong (ep. 4) * Han Ki-won as Hong Ki-joon (ep. 4) * Kim Heung-soo as Lee Jong-seok (ep. 5) * Baek Bong-ki as Lee Hwan-seung (ep. 6) *

as Kim Han-sook (ep. 6) * Jang Kyung-yeob as Lee Jong-hyuk (ep. 7) * Seo Woo-jin as Kang Do-jin (ep. 7) * Ji-soo as Kim Eun-shil (ep. 7) * Sung Doo-sub as Lee Chul-min (ep. 8) * Jang Se-hyun as Lee Woo-min (ep. 8) * Jung So-young as Choi Seo-yeon (ep. 9) * Kim Bo-mi as Go Gil-nyeo (ep. 10) * Choi Ho-joong as Park Chan-hyung (ep. 10) *

Yang Geum-seok Yang Geum-seok (; born January 22, 1961) is a South Korean actress. Filmography Film Television series Variety show Awards and nominations References External links

* * * 1961 births Living people People fro ...

as Jang Hae-won, Jin-woo's mother (ep. 10–12) * Choi Cheol-ho as Seo Sang-woo (ep. 11–12) * Lee Sang-yi as Park Jae-sung (ep. 1,2) * Lee Young-sook as Kim Soo-soon, Jae-sung's mother (ep. 2) * Jung Myung-joon as Min Byung-tae (ep. 1,2) * Kim Kyung-min as Jung Chang-man (ep. 2) *

Baek Su-ho Baek Su-ho (; born Baek Seung-hwan on April 17, 1998) is a South Korean actor. He began his career as a child actor The term child actor or child actress is generally applied to a child acting on stage, television, or in film, movies. An adu ...

as Im Doo-yeon (ep. 3,4) * Jo Seung-yeon as Lee Jae-hyung (ep. 4) * Park Se-hyun as Lee Ji-eun (ep. 4) * Kim Dong-bum as Huh Sang-chan (ep. 3,4) * Tak Woo-seok as Yoon Hyun-jong (ep. 5,6) * Seo Yu-jeong as Shin Yeon-hwa (ep. 5,6) * Han Seung-yong as Hwang Kyung-chul (ep. 5,6) * Shin Young-eun as Yoon Se-eun (ep. 5,6) * Jang Won as Kwon Young-pil (ep. 5,6) * Hong Ji-young as Nam Sang-bok's sister (ep. 7,8) * Yang Joo-ho as Nam Sang-bok's brother-in-law (ep. 7,8) * Im Yoo-sung as Kim Seo-joon, Nam Sang-bok's nephew (ep. 7,8) * Jeon Se-hyeon as Ra Hee-young (ep. 7,8) * Oh Yoo-jin as Lee Eun-soo (ep. 7,8) * Jang Won-hyuk as Yang Oh-soo (ep. 8) * Jung Hye-rin as Oh Soo-young (ep. 8) * Kang Jae-min as Shin Sun-woo (ep. 9,10) * Jung Woo-young as Lee Young-rak (ep. 9,10) * Choi Young-woo as Jeon Du-yeop (ep. 10) * Kim Do-kyung as Ha Yoon-woo (ep. 10)

Character appearances

Episodes

Season 1 (2010)

Season 2 (2011)

Season 3 (2012)

Season 4 (2014)

Season 5: Reboot (2018-2019)

International broadcast

The first three seasons aired in Japan on BS-Japan, and the fourth season aired on DATV starting from December 16, 2014.

Notes

References

External links

* * *
''Quiz of God – Season 3'' official website
*
''Quiz of God – Season 4'' official website
*
''Quiz of God – Season 5 (Reboot)'' official website
* {{Works by Studio Dragon OCN television dramas Korean-language television shows 2010 South Korean television series debuts South Korean medical television series