Won Bin
In "The Man From Nowhere", Cha Tae-Shik (played by Won Bin) makes use of a switchblade and the art form kali to combat gangsters in a large condominium towards the finale of the film. After defeating the gangsters, he fights their hired assassin who also wields a karambit. Both fighters fight close quarters until Cha Tae-Shik gains the upper hand and stabs the hired assassin in the heart.