Autobots: •Optimus- Peter Cullen •Bumblebee- Josh Keaton •Prowl- Tim Russ •Windblade- Kelly Hu •Chromia- Susan Eisenberg •Arcee- Kari Wahlgren •Omega Supreme- Kevin Michael Richardson •Alpha Trion- William Shatner (modern) •Jetfire- •Jazz- Phil LaMarr •Wheeljack- •Ironhide- John Goodman •Fort Max- •Skylynx- •Sideswipe- Sean Astin •Blurr- John Moschitta Jr •Cosmos- • • • • •
Lost Light: •Megatron- •Ravage- Dee Bradley Baker •Rodimus- Chris Pine •Ultra Magnus- •Drift- John Cho •Brainstorm- David Tennant •Whirl- Ron Perlman •Nautica- Karen Gillan •Swerve- David Hewlett •Tailgate- •Cyclonus- Carl Lumly •Ratchet- Karl Urban •First Aid- Michael Rosenbaum •Trailcutter- •Rung- David Hyde Pierce •Hoist- •Riptide- R. Lee Ermey •Chromedome- •Rewind- Drake Bell •Perceptor- Paul Eding •Blaster- •Red Alert- Robert Picardo •Nightbeat- Jeffrey Combs •Skids- • • • • • • •
Dinobots: •Grimlock- Keith David •Slag/Slug- Steve Blum •Sludge- •Snarl- •Swoop-
Wreckers: •Springer- Nathan Fillion •Kup- Will Patton •Ironfist- Patton Oswald •Pyro- George Newbern •Rotorstorm- •Guzzle- •Twintwist- •Topspin- •Impactor-
Decepticons: •Starscream- Mark Hamill •Shockwave- Cory Burton •Soundwave- Chris Judge •Frenzy- Frank Welker •Rumble- Frank Welker •Skywarp- •Astrotrain- •Blitzwing-
Combaticons: •Onslaught- •Swindle- Fred Willard •Brawl- •Blast Off- •Vortex-
Most times I don't, I'll have to admit. Odd occasions, such as Starscreams "STRUTLESS COWARDS!" from Infiltration were instantly in Chris Latta's voice. For the most part I just like to imagine who'd I'd cast in the role should an animated adaption of these come about.