Gregory Michael Cipes is an American actor. He is best known for his voice roles as Beast Boy in Teen Titans, Teen Titans Go!, Young Justice: Outsiders, and Beast Boy: Lone Wolf; Michelangelo in Teenage Mutant Ninja Turtles; Kevin Levin in the Ben 10 franchise; Iron Fist in Ultimate Spider-Man; Chiro in Super Robot Monkey Team Hyperforce Go!; and Splaat from RoboSplaat!