Greg Abbey (born December 15, 1970; 48 years old) also known as John Campbell or Frank Frankson. He is the American voice actor for Raphael, Griddex, and Dark Raph in the 2003 animated series, Fast Forward, TMNT: Back to the Sewer, Turtles Forever and various video games, as well as Cement Man in Turtles in Time: Re-Shelled and Nightwatcher in Teenage Mutant Ninja Turtles Smash-Up. More recently, he inherited the voice-only role of Speed Racer and Spritle Racer from Speed Racer: The Next Generation, after Peter Fernandez died in 2010.