Garry Chalk
Garry Chalk is a British-born Canadian actor. He has provided the voices for Optimus Primal of Beast Wars: Transformers and Beast Machines, as well as Optimus Prime in the anime English dubs of Transformers: Armada, Transformers Energon, and Transformers: Cybertron. Chalk's live-action performances include The Fly II, Godzilla, Freddy vs. Jason, Stargate SG-1, and Cold Squad.