Cam Clarke

Cam Clarke is a prolific voice actor who performed both He-Man and Prince Adam in the 2002 revival of the cartoon series.

Overview
Clark is best known for voicing Leonardo in the original Teenage Mutant Ninja Turtles cartoon. Cam provided the singing voice of Simba in Disney's Lion King 2: Simba's Pride.

He also voiced the superhero Thor in the videogame Marvel Ultimate Alliance, and it's rather notable that one of Thor's battlecries was "By the power of Asgard!"