Prowl/Sideswipe/Swoop/Scrapper/Construction Worker/Bombshell

Michael Bell

Brawn/Shockwave/Spike/Sunstreaker

Corey Burton

Grimlock/Long Haul/Skyfire

Gregg Berger

Optimus Prime/Ironhide

Peter Cullen

Narrator

Victor Caroli

Thundercracker / Windcharger / Huffer

John Stephenson

Devastator

Arthur Burghardt

Jazz

Scatman Crothers

Starscream / Wheeljack / Sparkplug

Christopher Collins

Bumblebee/Scamper/Rollbar

Dan Gilvezan

Silverbolt/Duros/Triggerhappy/Vorath

Charles Adler

Chip Chase

Michael Horton

Megatron (voice) / Soundwave (voice) / Galvatron (voice)

Frank Welker

Astrotrain/Ramjet/Smokescreen

Jack Angel

Cliffjumper/Teletraan I/Bluestreak/Dr. Arkeville

Casey Kasem

Luisa/Grandmother

Mona Marshall

Ratchet/Gears/Indian Maharaja/Scavenger

Don Messick

Kickback

Clive Revill

Hound

Ken Sansom

Thundercracker/Huffer/Windcharger/Dr. Alcazar/Farmer/Oil Refinery Worker

John Stephenson

Shrapnel

Hal Rayle

Narrator (voice)

Victor Caroli

Inferno

Walker Edmiston

Bonecrusher / Hook / Slag

Neil Ross

Rodimus Prime/Firebolt/Apeface

Dick Gautier

Dirge

Bud Davis

Motormaster/Bruticus/Cyclonus/Unicron

Roger C. Carmel

Thrust / Blitzwing / Superion

Ed Gilbert

Afterburner / Rippersnapper

Jim Cummings

Arcee

Susan Blu

Grapple

Peter Renaday

Menasor

Regis Cordic

Perceptor (voice)

Paul Eiding

Daniel Witwicky / Daniel Witwicky (voice)

David Mendenhall

Sky Lynx (voice)

Aron Kincaid

Scourge (voice) / Misfire (voice)

Stan Jones

Trypticon (voice)

Brad Garrett