Happy Killers
Cast
Cast
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* [Kim Dong\-wook](/wiki/Kim_Dong-wook "Kim Dong-wook") as Detective Choi Jung\-min
* [Yu Oh\-seong](/wiki/Yu_Oh-seong "Yu Oh-seong") as Kim Young\-seok
* [Shim Eun\-kyung](/wiki/Shim_Eun-kyung "Shim Eun-kyung") as Kim Ha\-rin, Young\-seok's daughter
* [Kim Eung\-soo](/wiki/Kim_Eung-soo "Kim Eung-soo") as Team leader
* Kim Seon\-hyuk as Detective Im
* [Lee Mi\-do](/wiki/Lee_Mi-do "Lee Mi-do") as Jjookkoomi ("webfoot octopus")
* Han Seong\-sik as Distributor
* [Jin Kyung](/wiki/Jin_Kyung "Jin Kyung") as Mi\-young
* Lee Jae\-gu as Young\-seok's friend
* Lee Yul as Yi\-kyung
* Jeong Jong\-yeol as Detective 1
* Jeong Mi\-seong as Detective 2
* Lee Ho\-yeon as Detective 3
* Shin Jeong\-min as Player 1
* Baek Eun\-kyeong as Player 2
* Lee Soo\-jin as Player 3
* Lee Myeong\-ho as Jae\-won
* Kim Ri\-ah as First victim
* Lee Jang\-mi as Second victim
* Kim Mi\-yeong as Third victim
* Jo Kyeong\-sook as Small store owner
* Kwon Oh\-jin as Drunkard
* Tak Seong\-eun as Nurse
* Jeon Seong\-ae as Adviser for studying abroad
* Kim Ji\-eun as Homeroom teacher
* Kim Jeong\-sik as Teacher 1
* Shin Hye\-jeong as Teacher 2
* Oh Ki\-hwan as Apartment security guard
* Kim Kang\-woo as Male demonstrator 1
* Choi In\-soo as Male demonstrator 2
* Kim Mi\-joon as Female demonstrator 1
* Jeong Mi\-hye as Female demonstrator 2
* Kwon Beom\-taek as Chief of police
* Seong Hyeon\-joon as Criminal psychologist
* Son Kyeong\-min as Pretty boy in adult entertainment district
* Heo Haeng\-wook as Convenience store worker
* Kim Tae\-hyeong as Delivery worker
* Ok Ja\-yeong as Weather forecaster
* Ryoo Sang\-woo as Scooter man
* Kim Hyo\-je as Airport security worker
* [Oh Yeon\-seo](/wiki/Oh_Yeon-seo "Oh Yeon-seo") as Magazine model
* [Sung Ji\-ru](/wiki/Sung_Ji-ru "Sung Ji-ru") as Taxi driver (cameo)
* [Song Ok\-sook](/wiki/Song_Ok-sook "Song Ok-sook") as Jung\-min's mother (cameo)


Who plays Nurse?