Autobots
General
Optimus Prime | Bumblebee/Goldbug | Arcee | Jazz | Ironhide | Wheeljack | Ratchet | Hound | Prowl | Sideswipe | Sunstreaker | Blurr | Mirage | Skids | Hoist | Tracks | Windcharger | Blaster (Steeljaw, Ramhorn, Eject, Rewind) | Red Alert | Smokescreen | Trailbreaker | Bluestreak | Beachcomber | Inferno | Huffer | Rodimus Prime | Grapple | Ultra Magnus | Skyfire | Sky Lynx | Cliffjumper | Kup | Brawn | Tailgate | Gears | Outback | Metroplex | Sandstorm | Cosmos | Omega Supreme | Perceptor | Springer | Broadside | SeaSpray | Pipes | Warpath | Wheelie | Wreck-Gar | Sentinel Prime

Dinobots
Grimlock | Slag | Sludge | Snarl | Swoop
Aerialbots
Silverbolt | Fireflight | Slingshot | Skydive | Air Raid | Superion
Protectobots
Hot Spot | Groove | First Aid | Blades | Streetwise
Technobots
Scattershot | Lightspeed | Strafe | Nosecone | Afterburner
Throttlebots
Rollbar | Wideload | Chase | Searchlight | Freeway
Headmasters
Fortress Maximus | Highbrow | Chromedome | Hardhead | Brainstorm
Targetmasters
Pointblank | Crosshairs | Sureshot

Cartoon exclusive
Alpha Trion | Elita-One | Chromia | Firestar | Moonracer

Comics exclusive
Scrounge | Impactor | Emirate Xaaron | Wreckers (Roadbuster, Topspin & Twin Twist, Whirl) | Primus | Grotusque | Fizzle | Sizzle | Guzzle | Waverider | Cloudburst | Landmine | Getaway | Joyride | Slapdash | Backstreet | Dogfight | Override | Landfill | Roadhandler | Freewheeler | Tailspin | Swindler | Chainclaw | Nightbeat | Siren | Hosehead | Powertrain | Mudslinger | Highjump | Fixit | Seawatch | Stakeout | Big Shot | Flak | Quickswitch | Quickmix | Scoop | Doubleheader | Pincher | Longtooth

Humans
General
Spike Witwicky | Sparkplug Witwicky | Daniel Witwicky

Cartoon exclusive
Carly Witwicky | Chip Chase | Rauol | Astoria Carlton-Ritz | Marissa Faireborn

Comics exclusive
Buster Witwicky | Jesse | G.B Blackrock | Joy Meadows | Susan Hoffman | Cindy Newell
Others
Comics exclusive
Death's Head