Full cast of Transformers: Prime

Peter Cullen

Optimus Prime (voice)

65 episodes

Jeffrey Combs

Ratchet (voice)

65 episodes

Frank Welker

Megatron (voice)

65 episodes

Tania Gunadi

Miko Nakadai (voice)

65 episodes

Josh Keaton

Jack Darby (voice)

65 episodes

Kevin Michael Richardson

Bulkhead (voice)

65 episodes

Ernie Hudson

Agent William Fowler (voice)

65 episodes

Andy Pessoa

Rafael "Raf" Esquivel (voice)

65 episodes

Sumalee Montano

Arcee (voice)

65 episodes

Steve Blum

Starscream (voice)

65 episodes

Daran Norris

Knock Out (voice)

65 episodes

Markie Post

June Darby (voice)

15 episodes

David Sobolov

Shockwave (voice)

14 episodes

Nolan North

Smokescreen (voice)

13 episodes

Michael Ironside

Ultra Magnus (voice)

13 episodes

Adam Baldwin

Breakdown (voice)

11 episodes

Clancy Brown

Silas (voice)

8 episodes

Tony Todd

Dreadwing (voice)

8 episodes

Gina Torres

Airachnid (voice)

8 episodes

John Noble

Unicron (voice)

4 episodes

Peter Mensah

Predaking (voice)

4 episodes

Alexandra Krosney

Sierra (voice)

3 episodes

George Takei

Alpha Trion (voice)

2 episodes

David Kaye

Hardshell (voice)

2 episodes

James Horan

Wheeljack (voice)

1 episode

Richard Green

Skyquake (voice)

1 episode

Dwayne Johnson

Cliffjumper (voice)

1 episode

Will Friedle

Bumblebee (voice)

1 episode

Billy Brown

Cliffjumper (voice)

1 episode

Reggie Bannister

Museum Security Guard (voice)

1 episode

Brad Raider

Vince (voice)

1 episode

John DiMaggio

Vogel (voice)

1 episode

Robert Forster

General Bryce (voice)

1 episode