Tony Jaa - Love him... in the first ONG-BAK: MUAY THAI WARRIOR! "...Tatchakorn Yeerum. Better known in the West as Tony Jaa, in Thailand as Jaa Panom, is a Thai martial artist, physical educator, actor, choreographer, stuntman, director, and spent time as a Buddhist monk!"
Muay thai is a lethal strikin art. Uses the 8 point technique, utilizing hands, feet, elbows, knees. Highly telegraphed moves though, so if you are faster, or have techniques for that, such as in Aikido, this isn't as good in my opinion. Very brutal powerhouse art though. Kids train and will kick trees until the trees shake just to toughen up their legs.