Memorist

''Memorist is a 2020 South Korean television series starring Yoo Seung-ho, Lee Se-young, and Jo Sung-ha. Based on the 2016–2018 Daum webtoon of the same name by Jae Hoo, it aired on tvN from March 11 to April 30, 2020.

Synopsis
With the power to read people's memories, Dong Baek solves crimes as a detective in the police force. When a string of serial murders happen, Dong Baek teams up with talented criminal profiler Han Sun-mi to stop the killer and prevent further deaths. However, as they pursue the killer, the truth about their individual troubled pasts begins to unravel, and the murders quickly become far more convoluted than anything they had foreseen.

Main

 * Yoo Seung-ho as Dong Baek / Sung Ju-ho
 * A police officer and detective who is very passionate about catching criminals. He has the supernatural ability to read a person's memories by touching their skin. As a child, he was found wandering at Dongbaek Station with no memories of his past, except for a vague recollection of witnessing a woman, presumably his mother, being murdered.


 * Lee Se-young as Han Sun-mi / Kim So-mi
 * The youngest Superintendent of Special Investigation Headquarters. She was originally a lawyer but later on became a police officer to find the truth about her father's murder 20 years ago. Her father is a leader of the Labour Union but betrayed the workers whom he supposed to protect, leading to a mass layoff.


 * Jo Sung-ha as Lee Shin-woong, head of the entire police department. He is responsible for covering up the murder and rape 20 years ago. He is arrested in the end for corruption.

People around Dong Baek

 * Ko Chang-seok as Gu Kyung-tan
 * Dong Baek's senior at work and also the trio's captain. He frequently complains about Dong Baek's recklessness will cause him hair loss but continuously tries his best in helping Dong Baek while also caring about him a lot.


 * Jun Hyo-seong as Kang Ji-eun
 * An honest reporter at TVC News. She was forced by her superiors to write fake news about Dong Baek


 * Yoon Ji-on as Oh Se-hoon
 * Dong Baek's partner and assistant. He cares a lot about Dong Baek and tries his best to help the latter.

Special Investigation Headquarters

 * Kim Yoon-hee as Jung Mi-ja
 * A criminal profiler that gathers intelligence about the serial murder case under Superintendent Han Sun-mi.


 * Im Se-joo as Lee Seul-bi
 * A criminal profiler that gathers intelligence about the serial murder case under Superintendent Han Sun-mi.


 * Jung Ha-joon as Hwang Bong-gook
 * A law student that become a detective. He specializes in hacking computer systems. He has a crush on Han Sun-mi, who was his lecturer from his student days and is very loyal to her.

Metropolitan Police

 * Son Kwang-up as Byun Young-soo
 * Kim Seo-kyung as Im Chil-gyu
 * Moon Jung-gi as Kwon Woon-jang
 * Oh Chi-woon as Min Sung-han
 * Park Eung-su as Jang Ki-dae

Jin Jae Gyu's family

 * Jo Han-chul as Jin Jae-gyu
 * Choi Seung-yoon as young Jin Jae-gyu
 * Seo Eun-yool as child Jin Jae-gyu
 * An illegitimate child of a conglomerate chairman and a shaman, Jin Jae-gyu lives a hellish life after his shaman mother died from poisoning. He was possessed by the spirit his mother served, and obtained the power to predict the future. He was a serial vigilante murderer named The Executioner, who killed people that got away with their wrong doings and is suspected as The Eraser. He is also the one who killed Han Sun-Mi's father for what he had done to the workers.


 * Lee So-yoon as Shim Sang-ha
 * Jin Jae-gyu's stepdaughter, whom he loves most. As a child, she ran away from home after her mother committed suicide along with her lover as she believes they were murdered by her stepfather.


 * Kang Hyun-jung as Shim Hyo-sook
 * She was Jin Jae-gyu's wife and Sang-ha's mother. She only married him to take the money he inherited. She plans on killing him and leaving her daughter behind before running away with his money and her lover, Sang-ha's biological father.


 * Lee Whee-Hyang as Hwang Pil-Seon
 * She is Jin Jae-guy's step sister, a devilish woman that would do anything to protect her family's reputation. She covered up her son's crime from 20 years ago and got rid of everyone involved. She is arrested in the end.


 * Ahn Jae-mo as Bang Joon-Seok
 * Hwang Pil-seon's only son, a former assemblyman and highly influential politician. He is the head of the gangs that raped and killed the girl named Song-A who is the daughter of the chief of the fire department and Song Ju-ran's best friend. He is arrested in the end for his crimes but committed suicide in prison out of shame.


 * Kim Young-mi as Eun Soo-kyung
 * Bang Joo-seok's wife. She was abducted by The Eraser while being 7 months pregnant.

Others

 * Hong Seung-hee as Lee Bo-yun
 * Jung Shin-hye as Yoo Ah-young
 * Yoo Soon-nam's daughter


 * Cha Mi-kyung as Mrs. Gong
 * Yoo Gun-woo as Woo Seok-do
 * A corrupt prosecutor that tries his best to arrest and stop Dong Baek at all costs under the order of the higher-ups.


 * Kim Nak-kyun as Detective
 * Cha Soon-bae as Im Joong-yeon
 * Jo Seok-hyun as Northern Prosecutor
 * Kim Ji-in as Yoon Ye-rim
 * She was abducted on her way home by a serial murderer.


 * Choi Seo-ryung as Kim Seo-kyung
 * Lee Young-jin as Seo Hee-soo/Sung Ju-ran (ep. 12-16)
 * Jo Hye-joo as young Sung Ju-ran
 * Bang Joon-seok's personal maid and an accomplice of his wife's abductor. It is revealed that she is Sung Ju-ho's older sister who possesses the same memory-reading power as him but she also possesses the ability to erase people's memories. She is the serial killer known as the Eraser.

Special appearances

 * Ha Do-kwon as gang member (Ep. 1)
 * Park Jin-woo as Detective (Ep. 1)
 * Kim Ki-doo as Detective Yoon-young (Ep. 1)
 * Choi Hee (Ep. 1)
 * Jo Yi-haeng as Shin Mi-young's husband (Ep. 16)

Production
The first script reading took place on December 2, 2019.

The drama serves as a reunion between Yoo Seung-ho and Lee Se-young who previously worked together on the MBC drama Missing You (2012–13).