Transformers: Prime

Peter Cullen

Optimus Prime (voice)

Jeffrey Combs

Ratchet (voice)

Frank Welker

Megatron (voice)

Tania Gunadi

Miko Nakadai (voice)

Josh Keaton

Jack Darby (voice)

Kevin Michael Richardson

Bulkhead (voice)

Ernie Hudson

Agent William Fowler (voice)

Andy Pessoa

Rafael "Raf" Esquivel (voice)

Sumalee Montano

Arcee (voice)

Nolan North

Smokescreen (voice)

Steve Blum

Starscream (voice)

Michael Ironside

Ultra Magnus (voice)

David Sobolov

Shockwave (voice)

Daran Norris

Knock Out (voice)