Ben Schwartz as Leo / Janitor Man (voice)

Omar Benson Miller as Raph / Office Man 1 (voice)

Brandon Mychal Smith as Mikey / Foot Soldier 1 (voice)

Josh Brener as Donnie / Security AI / Tank AI / Dragged Man (voice)

Haley Joel Osment as Casey Jones / Foot Soldier 3 (voice)

Eric Bauza as Splinter / Additional Characters (voice)

Kat Graham as April O'Neil / Café Woman 3 (voice)

Jim Pirri as Krang One / Military Soldier 1 (voice)

Toks Olagundoye as Krang Two / Military Woman (voice)

Rhys Darby as Hypno-Potamus (voice)

Rob Paulsen as Various Characters (voice)

John Michael Higgins as Warren Stone (voice)

Eugene Byrd as Security Guard / Police / Office Man 2 / Café Man (voice)

Meghan Falcone as Office Woman 1 / Office Woman 2 (voice)

Nika Futterman as Various Characters (voice)

Oliver Vaquer as Various Characters (voice)