Marc Thompson (born November 19, 1970) is an American-born voice actor who works primarily on the properties of 4Kids Entertainment. He lent his voice to Anthony DeMartino, Timothy O'Neill, Kevin Thompson and Charles "Upchuck" Ruttheimer III on the series Daria. His other roles include Toraichi Tamiya in Ah! My Goddess, Geki Hyuma, VolFogg, and Kazuo Ushiyama in GaoGaiGar: King of Braves, Casey Jones in Teenage Mutant Ninja Turtles (2003), and Duke Devlin in Yu-Gi-Oh. He voiced Ruby Eye Shabranigdu in Slayers Evolution-R, replacing Roger Kay, who voiced Shabranigdu in the original series.
He was a minister of the International Churches of Christ, Greater New York Chapter. He earned a BFA in 1997 from New York University's Tisch School of the Arts.