Baldwin, Adam – Breakdown
Bannister, Reggie – Museum security guard
Blu, Susan – (Voice Director)
Blum, Steve – Bombshock / Darksteel / Insecticon / Starscream
Brown, Billy – Cliffjumper
Brown, Clancy – Silas
Combs, Jeffrey – Ratchet
Cullen, Peter – Nemesis Prime / Optimus Prime / Vehicon
Forster, Robert – General Bryce
Friedle, Will – Bumblebee
Green, Richard – Skyquake
Gunadi, Tania – Miko Nakadai
Horan, James – Wheeljack
Hudson, Ernie – Agent William Fowler
Ironside, Michael – Ultra Magnus
Johnson, Dwayne “The Rock” – Cliffjumper
Kaye, David – Hardshell / Vehicon
Keaton, Josh – Jack Darby / Tailgate / Vehicon
Krosney, Alexandra – Sierra
Mensah, Peter – Predaking
Montano, Sumalee – Arcee / Raf’s mom
Noble, John – Unicron
Norris, Daran – Knock Out / Trooper
North, Nolan – Sky Lynx / Smokescreen
Pessoa, Andy – Rafael ‘Raf’ Esquivel
Post, Markie – June Darby
Raider, Brad – Vince
Richardson, Kevin Michael – Bulkhead / Makeshift / Insecticon
Sobolov, David – Shockwave / Vehicon
Takei, George – Alpha Trion
Todd, Tony – Dreadwing
Torres, Gina – Airachnid
Welker, Frank – Megatron / Terrorcon Cliffjumper / Terrorcon Skyquake / Insecticons / Soundwave