Jaime King as Solus Prime (voice)

Nuufolau Joel Seanoa as Predaking (voice)

Peter Cullen as Optimus Prime (voice)

Judd Nelson as Hot Rod / Rodimus Cron / Rodimus Unicronus / Unicron (voice)

Kari Wahlgren as Victorion (voice)

Wil Wheaton as Perceptor (voice)

Ron Perlman as Optimus Primal / Optimal Optimus (voice)

Frank Todaro as Sludge and Starscream (voice)

Charlie Guzman as Menasor (voice)

Mark Hamill as Megatronus / The Fallen (voice)

Jamie Iracleanos as Slug (voice)

Jason Marnocha as Megatron (voice)

Matthew Patrick as Computron and Swoop (voice)

Patrick Seitz as Overlord (voice)

Mikey Way as Snarl (voice)

Gregg Berger as Grimlock (voice)

Abby Trott as Windblade (voice)