Transformers: 40th Anniversary Event

Frank Welker

Megatron / Mirage / Rumble / Skywarp / Soundwave (voice)

Gregg Berger

Cliffjumper / Narrator / Spike Witwicky / additional voices (voice)

Peter Cullen

Optimus Prime / Ironhide (voice)

Frank Todaro

Starscream / Wheeljack / Reflector / Sparkplug Witwicky (voice)

Arif S. Kinchen

Jazz (voice)