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Kwak Sun Young and Lee Yi Kyung will appear in the third and fourth episodes of Mary Kills People.
On August 7, it was officially confirmed that Kwak Sun Young and Lee Yi Kyung will make a special cameo appearance in the upcoming episodes of the medical crime K-drama, which will premiere tomorrow.
Kwak Sun Young and Lee Yi Kyung chose to appear in the K-drama because of their connections to the director and main leads. Kwak Sun Young had previously collaborated with director Park Joon Woo on the 2024 series Crash. Lee Yi Kyung, on the other hand, is showing support for his friend and senior actor, Lee Min Ki, who is leading the series.
The production team of Mary Kills People shared, "Kwak Sun Young and Lee Yi Kyung's appearances will have a powerful impact on the drama's main villain. The two actors, who willingly made cameo appearances, have greatly enhanced the quality of the story. Please look forward to seeing them play a key role in the drama's highlights."

Mary Kills People tells the story of a doctor who illegally helps terminally ill patients with euthanasia. The story will be depicted from the popular 2017 Canadian series of the same name.
Lee Bo Young, Lee Min Ki, Kang Ki Young, Baek Hyun Jin, and Kwon Hae Hyo are leading the K-drama.
Kwak Sun Young will portray the role of Koo Hye Rim, the wife of Lee Yi Kyung's character Geum Myung Seok. The two are family members of the drug dealer Koo Gwang Cheol, played by Baek Hyun Jin.
The K-drama is the joint work of director Park Joon Woo (Crash, Taxi Driver, and Doctor Detective) and writer Lee Su A (Venus Talk and Unemployed Romance).
The third episode of Mary Kills People will air on August 8 at 10 PM KST. The K-drama airs exclusively on MBC and the streaming platform TVING.
Have you seen all the episodes of Mary Kills People so far?
