Garry Chalk

Garry Chalk is a Britishborn Canadian actor and voice actor. He has provided the voices for Optimus Primal of Beast Wars Transformers and Beast Machines, as well the Optimus Prime in the anime English dubs of Transformers Armada, Transformers Energon, and Transformers Cybertron, and also was the third American voice of Dr. Robotnik for Sonic Underground. He has lent his voice to overanimated television series and has been in films such as The Fly II and Freddy vs. Jason.

Chalk was born in Southampton, Hampshire, England, and moved with his family to Vancouver, Canada onJune 1957.

Source: Wikipedia