Suggestions by @thecrimsonpaw
6,300 suggestions
Julian McMahon
as Gallaxhar in Jimmy Neutron: Boy Genius
Martin Short
as Ooblar in Jimmy Neutron: Boy Genius
A.J. LoCascio
as "Starting My New Adventures..." in Superman: In Brainiac's Grasp.
Captain N
as "Starting My New Adventures..." in Superman: In Brainiac's Grasp.
Spoiler
as "Starting My New Adventures..." in Superman: In Brainiac's Grasp.
Russell Crowe
as King Goobot in Jimmy Neutron: Boy Genius
Jimmy Neutron: Boy Genius
as Next Project: in The Super Mario Bros: Invasion of the Koopa Kids.
Matt Shakman
as Director in The Super Mario Bros: Invasion of the Koopa Kids.
Julian McMahon
as "Commence the Invasion of Earth..." in The Super Mario Bros: Invasion of the Koopa Kids.
Gallaxhar
as "Commence the Invasion of Earth..." in The Super Mario Bros: Invasion of the Koopa Kids.
Spoiler
as "Commence the Invasion of Earth..." in The Super Mario Bros: Invasion of the Koopa Kids.
Willem Dafoe
as "Bring me Plan B..." in The Super Mario Bros: Invasion of the Koopa Kids.
Pedro Pascal
as "Bring me Plan B..." in The Super Mario Bros: Invasion of the Koopa Kids.
Waluigi
as "Bring me Plan B..." in The Super Mario Bros: Invasion of the Koopa Kids.
Wario
as "Bring me Plan B..." in The Super Mario Bros: Invasion of the Koopa Kids.
Spoiler
as "Bring me Plan B..." in The Super Mario Bros: Invasion of the Koopa Kids.
Koopa Kid
as Koopa Kid in The Super Mario Bros: Invasion of the Koopa Kids.
Iain Armitage
as Mega Man in The Super Mario Bros: Invasion of the Koopa Kids.
Matt Sloan
as Needle Man in The Super Mario Bros: Invasion of the Koopa Kids.
Mark Ruffalo
as Heat Man in The Super Mario Bros: Invasion of the Koopa Kids.