Hasbro Studios' Transformers: The Animated Series

Autobots and Decepticons

 * Peter Cullen as Optimus Prime
 * Chris Parnell as Bumblebee
 * Danny Pudi as Jazz
 * Wayne Knight as Ratchet
 * Jess Harnell as Ironhide
 * Rob Paulsen as Barricade
 * Hugo Weaving as Hot Shot
 * Frank Welker as Megatron
 * Kevin Michael Richardson as Frenzy
 * Charlie Adler as Starscream
 * Scott Menville as Blackout
 * Greg Cipes as Brawl
 * Martin T. Sherman as Scorponok
 * Khary Payton as Mudflap
 * Mark Ryan as Sideswipe
 * Grey Griffin as Arcee
 * Larry Miller as Soundwave
 * David DeLuise as Devastator
 * Tom Kenny as Wheelie
 * Roger L. Jackson as Skids
 * David Warner as Demolishor
 * John DiMaggio as Scalpel
 * Michael York as Prime #1
 * Daran Norris as Prime #2
 * Quinton Flynn as Rampage
 * Robin Atkin Downes as Prime #3
 * Brian Cummings as Sentinel Prime
 * James Remar as Cyclonus
 * Tom Kane as Mirage
 * Will Ryan as Wheeljack
 * Ice Cube as Brains
 * Matthew Lillard as Shockwave
 * Neil Flynn as Roadbuster
 * Jeff Bennett as Leadfoot
 * Jim Cummings as Laserbeak
 * David Ogden Stiers as Igor
 * Jim Ward as Crowbar
 * Bud Luckey as Crankcase
 * Craig Ferguson as Loader
 * John Goodman as Hound
 * Clancy Brown as Drift
 * Bill Fagerbakke as Grimlock
 * Gary Cole as Strafe
 * Will Friedle as Slug
 * David Tennant as Cogman
 * Dwayne Johnson as Hot Rod
 * Dan Castellaneta as Daytrader
 * Stephen Root as Topspin
 * Larry Miller as Mohawk
 * Kevin Conroy as Dreadbot

Humans

 * Jeremy Shada as Sam Witwicky
 * Khary Payton as Sgt. Robert Epps
 * Roger Craig Smith as Capt. William Lennox
 * Kevin Michael Richardson as Glen Whitmann
 * Mae Whitman as Mikaela Banes
 * Tara Strong as Maggie Madsen
 * John DiMaggio as Agt. Seymour Simmons
 * Pat Fraley as John Keller
 * Mark Hamill as Tom Banachek
 * Rob Paulsen as Ron Witwicky
 * Candi Milo as Judy Witwicky
 * Danny Pudi as ACWO Jorge "Fig" Figueroa
 * Josh Keaton as First Sergeant Donnelly
 * Christopher Lloyd as Captain Archibald Witwicky
 * Michael Dorn as Bobby Bolivia
 * Ben Schwartz as Miles Lancaster
 * John Tartaglia as Trent DeMarco
 * Clancy Brown as Colonel Sharp
 * Eric Artell as Leo Spitz
 * Eden Riegel as Alice
 * Daran Norris as Theo Galloway
 * James Arnold Taylor as Graham
 * Diedrich Bader as Prof. R. A. Colan
 * Chad Doreck as Commander
 * Aubrey Plaza as April the Residential Assistant
 * Olivia Holt as Carly Spencer
 * Larry Miller as Bruce Brazos
 * Nancy Cartwright as Charlotte Mearing
 * Janice Kawaye as as the aide and assistant of Charlotte Mearing
 * Tyrese Gibson as "Hardcore" Eddie
 * Jason Ritter as Stone
 * Alan Tudyk as Dutch
 * Maurice LaMarche as Jerry "Deep" Wang
 * Thomas F. Wilson as Buzz Aldrin
 * Doug Lawrence as Bill O'Reilly
 * Ron Perlman as Cosmonaut Dimitri
 * Chris Hardwick as Donnie
 * Mindy Sterling as Martha
 * Travis Willingham as Cade Yeager
 * Carlos Alazraqui as Joshua Joyce
 * Kelsey Grammer as Harold Attinger
 * Laura Marano as Tessa Yeager
 * Spencer Fox as Shane Dyson
 * Tom Kane as James Savoy
 * Jenny Slate as Darcy Tirrel
 * Cindy Robinson as Su Yueming
 * T. J. Miller as Lucas Flannery
 * Adam McArthur as Drake
 * David Arquette as Gill Wembley
 * Thomas Lennon as Chief of Staff
 * Aubrey Plaza as Viviane Wembly
 * Kristen Li as Izabella
 * Kyle Massey as Jimmy
 * Thomas Middleditch as Santos
 * Tony Hale as King Arthur
 * Adam DeVine as Larry Jones