Here, his casting of Ha Jung-woo and Jeon Ji-hyun is excellent.
Ha may not be as brilliant as, say, Song Kang-ho, in conveying tormented psychological inner workings of the outwardly taciturn warrior, but he still commands the screen with bristling charisma (one of his best-known, pre-stardom stage roles, by the way, was, appropriately, Othello).
Neither do, despite the crowd-pleasing presence of Han Suk-kyu, Southern agents play a significant role in The Berlin File.
Instead, the film works best when Ryoo focuses on the intolerable paranoia and distrust that poison and undermine the integrity of North Korean characters.
Oh is a theater actor who has appeared in many supporting roles over the years, but his performance in this film has earned him special attention.