Tony Jaa would be a great addition to the MK movies, especially since he was an uncredited stunt double for Liu Kang in Mortal Kombat: Annihilation. But who would they have him portraying? Lots of people on here said Kung Lao. But Kung Lao was a bit taller than Tony, who is only 5'1". But if they should give him a Kung Lao role, he should start another Mortal Kombat: Konquest series by himself. It might make Threshold Entertainment a bit better than they look right now, as they recruit a man that can take a harsh grounded style like Mui Thai and break the law of physics with it. That is the most agile Mui Thai master I have ever seen.

But in the movies, Tony Jaa would probably remain a stunt double, especially since his english is not as good as his fighting skills.