Rolf Helbig

David Kaye is a Canadian voice actor. He is best known for his roles as Megatron in five Transformers series: Beast Wars, Beast Machines, Armada, Energon, and Cybertron; Optimus Prime in Transformers: Animated; Professor X and Apocalypse in X-Men: Evolution; and various characters in Class of the Titans, Ben 10: Omniverse (Khyber and Shocksquatch), and Avengers Assemble.