Keith Cooke Hirabayashi is an American born martial artist, actor and fitness fanatic with Japanese heritage. Keith has been teaching martial arts for over 45 years, and is a former world champion and three-time Competitor of the Year. He is best known for portraying Reptile in 1995’s Mortal Kombat and Sub-Zero in its sequel Mortal Kombat: Annihilation.

Martial arts aside, Keith is currently heavily invested in the world of fitness, pioneering a total physical training system dubbed The Ring Workout.