Scott Adkins as Casey

Todd Jensen as Det. Traxler

Tsuyoshi Ihara as Masazuka

Mika Hijii as Namiko

Togo Igawa as Sensei

Garrick Hagon as Professor Garrison

Miles Anderson as Temple

Valentin Ganev as Klimitov

Atanas Srebrev as Detective Vukovich

Fumio Demura as Shihan Dai

Masaki Onishi as Ryuu

Nikolai Sotirov as Adamovich

Kenji Motomiya as Akira

Asen Asenov as Big armed man

Ivailo Dimitrov as Bodyguard

Kathryn Le as Kiko

Judith Michelle Hill as Neighbor woman

Meglena Karalambova as Rachel

Dimiter Doichinov as Ring Guard (uncredited)

Velizar Peev as Ring Guard (uncredited)

Assen Blatechki as Failed Guard