Optimus Prime, born Orion Pax, was one of the protagonists of the Transformers published by IDW comics.
He was the leader of the Autobots and revered as one of the most greatest heroes of Cybertron.
Wreckers: Leadfoot • Roadbuster • Topspin
Humans: Steven "Spike" Witwicky • Carly Witwicky • Daniel Witwicky • Samuel "Sam" Witwicky • Carly Spencer • Mikaela Banes • Charlotte "Charlie" Watson • Cade Yeager • Tessa Yeager • Sparkplug Witwicky • Chip Chase • Raoul • Astoria Carlton-Ritz • Marissa Faireborn • Buster Witwicky • Jesse • G.B. Blackrock • William Lennox • Seymour Simmons • Leo Spitz • Robert "Bobby" Epps • John Keller • Margaret "Maggie" Madsen • Glen Whitmann • Ronald "Ron" Witwicky • Judith "Judy" Witwicky • Shane Dyson • Izabella "Izzy" Yeager • Viviane Wembly • Su Yueming • Sir Edmund Burton • Darcy Tirrel • Sarah Lennox • Jackson "Jack" Darby • Miko Nakadai • Rafael "Raf" Esquivel • June Darby • William Fowler, Raoul
Decepticons: Megatron • Starscream • Shatter • Dropkick • Blitzwing • Soundwave • Shockwave • The Fallen • Cyclonus • Bonecrusher • Brawl • Skywarp • Sunstorm • Scorponok • Constructicons • Stunticons • Slog • Predacons • Ravage • Cliffjumper (Prime) • Thundercracker • Astrotrain • Blackout • Grindor • Laserbeak • Lockdown, Frenzy, Sideways
Other Villains: Unicron • Quintessons • Doctor Arkeville • Shawn Berger • Lord Chumley • King Nergill • Ali • Nightbird • Jero • Old Snake • Victor Drath • Primacron • Tornedron • Dweller • Mark Morgan • Gregory Swofford • Circuit Breaker • The Mechanic • Scraplets • Flame • Mecannibals