 He then starred in "Happy Killers" (2010) and "Romantic Heaven" (2011), but it was his acclaimed performance as an obsessed and tormented king in 2012 period drama "The Concubine" that brought Kim the best reviews of his career yet.After officially debuting in "A Crimson Mark", Kim Dong-wook's first notable role was the angry, impoverished teenager in director Byun Young-joo's 2004 coming-of-age film "Flying Boys".He then broke into the mainstream as the bubbly waiter in MBC's 2007 hit romantic comedy series "Coffee Prince".