

How to Train Your Killer (2026)
2 seasons· 40 episodes· Action & Adventure, Drama· ★ 7.4 (42)
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Iris (2009–2013) is binge-friendly, easy to follow, and never quite predictable. Two friends, members of the South Korean military, are recruited by a secret black ops agency. 2 seasons. 40 episodes total. Stars Lee Byung-hun, Kim So-yeon, Jung Jun-ho, Kim Tae-hee, and Kim Yeong-cheol. Genre: Action & Adventure and Drama. Viewer score 7.4 from 42 ratings. Watch every episode free in HD — no signup. Pick a season below to start. Each episode loads instantly in your browser, with the option to pick up where you left off across devices. The catalog includes the original release version of every season currently aired.
Seasons
Specials
2 ep · 2010
Season 1
20 ep · 2009
Season 2
20 ep · 2013
Cast

Lee Byung-hun
Kim Hyeon-Jun

Kim So-yeon
Kim Seon-Hwa

Jung Jun-ho
Jin Sa-Woo

Kim Tae-hee
Choi Seung Hee

Kim Yeong-cheol
Baek San

T.O.P
Vick

Moon Hee-kyung
Choi Seung-hee's aunt

Hyun Jyu-ni
Yang Mi-jung

David Lee McInnis
Ray

Jung Ho-bin
Kang Chul-hwan

Kim Seung-woo
Park Cheol-yeong

Lee Jeong-kil
Jo Myeong-ho

Yun Ju-sang
Oh Hyeon-kyu