Ernie is known to turtle fans for his roles in 1990’s Teenage Mutant Ninja Turtles (as action Donnatello), and 1991’s Teenage Mutant Ninja Turtles II: The Secret of the Ooze (as ‘Keno’). A child-prodigy martial arts star, Ernie also had roles in The Last Dragon, Red Sonja, and The Rundown. He was the star of the ‘80s TV series Sidekicks and starred in the action-comedy Surf Ninjas. His work can also be seen in Avatar and Indiana Jones and the Crystal Skull.