Cha Seung-won
Director Lee Joon-ik had previously wanted to cast Baek in his films "King and the Clown" and "The Happy Life"; he finally got to work with Lee in "Blades of Blood" (2010). Lee said he cast Baek as the character Gyun-ja who stands between the two main leads Hwang Jung-min and Cha Seung-won for he was "the only actor who can act as much as he can at such a young age," attesting to Baek's strong acting fundamentals.