Suggestions by @alecgroskreutz1

Steve Blum

as Ch’rell in Mario/Sonic/TMNT: Mutants in Manhattan

Steven Ogg

as Dr. Starline in Mario/Sonic/TMNT: Mutants in Manhattan

Wally Wingert

as Cubot in Mario/Sonic/TMNT: Mutants in Manhattan

Kirk Thornton

as Orbot in Mario/Sonic/TMNT: Mutants in Manhattan

Richard Steven Horvitz

as Lakitu in Mario/Sonic/TMNT: Mutants in Manhattan

Mike Pollock

as Dr. Ivo “Eggman” Robotnik in Mario/Sonic/TMNT: Mutants in Manhattan

Bill Hader

as Jeff in Mario/Sonic/TMNT: Mutants in Manhattan

Andy Samberg

as Hal in Mario/Sonic/TMNT: Mutants in Manhattan

Robin Atkin Downes

as Ray Filled in Mario/Sonic/TMNT: Mutants in Manhattan

Kevin Michael Richardson

as Kamek in Mario/Sonic/TMNT: Mutants in Manhattan

Jack Black

as King Bowser Koopa in Mario/Sonic/TMNT: Mutants in Manhattan

Liam O'Brien

as Shogo Takeshi in Mario/Sonic/TMNT: Mutants in Manhattan

Jim Cummings

as Rasputin the Mad Frog in Mario/Sonic/TMNT: Mutants in Manhattan

Steve Blum

as Napoleon Bonafrog in Mario/Sonic/TMNT: Mutants in Manhattan

Dee Bradley Baker

as Genghis Frog in Mario/Sonic/TMNT: Mutants in Manhattan

Yuri Lowenthal

as Attila the Frog in Mario/Sonic/TMNT: Mutants in Manhattan

Eric Bauza

as Hot Spot in Mario/Sonic/TMNT: Mutants in Manhattan

Ben Schwartz

as Pigeon Pete in Mario/Sonic/TMNT: Mutants in Manhattan

Troy Baker

as Walkabout in Mario/Sonic/TMNT: Mutants in Manhattan

Griffin Burns

as Silas Addamson in Mario/Sonic/TMNT: Mutants in Manhattan