Optimus Prime

Optimus Prime

Optimus Prime box art showing his original G1 toy design
Autobot/Maximal
Information
Sub-group	Action Masters, Autorollers, Combat Heroes, Deluxe Vehicles, Go-Bots, Masterpiece, Primes, Powermasters, Voyagers
Function	Autobot Leader, Supreme Commander, Chief Commander
Rank	10
Partner	Roller, Hi-Q
Motto	"Freedom is the right of all sentient beings." (Generation 1) "No sacrifice is too great in the service of freedom." (Classics)
Alternate modes	Freightliner Cab-over-engine Class 8 truck, Cybertronian truck, COBRA Sentry & Missile System tank, 1920s style truck, Peterbilt Truck, Mid-90s Peterbilt 4964EX Tanker Truck, Lamborghini Diablo, Dump truck, Dodge Ram SRT-10, Nissan GT-R, Bat
Series	Transformers: Generation 1 Transformers: Generation 2 Beast Wars Machine Wars Robot Masters Transformers: Titanium Transformers: Alternators Transformers: Classics Transformers: Universe Smallest Transformers Transformers: Masterpiece Transformers: Music Label Transformers: Sports Label Transformers: Alternity Transformers: Reveal the Shield
English voice actor	Peter Cullen (Television series, Rise of the Dark Spark, Transformers: Devastation) Ron Hayden (20th Anniversary toy sound base, Universe Flash cartoon) Jon Bailey (Transformers: Combiner Wars)
Japanese voice actor	Tesshō Genda

Optimus Prime

Autobot
Information
Sub-group	Activators, Bumper Battlers, Deluxe Vehicles, Micro Vehicles, Voyagers, Supreme Vehicles
Function	Autobot Leader, Team Commander
Rank	8
Partner	Bumblebee, Rodimus Minor, Ratchet, Bulkhead and Prowl
Motto	"Freedom is the Right of All Sentient beings". "As a team we can accomplish anything." (Deluxe Figure) "While I function, Earth is under my protection." (Voyager Figure) "Bring it on, Decepticons!" (Bumper Battlers)
Alternate modes	Cybertronian Cab-Over Truck futuristic Semi-trailer truck/Fire Truck
Series	Transformers Animated Transformers: Universe
English voice actor	David Kaye
Japanese voice actor	Hiroki Takahashi

Orion Pax/Optimus/Optimus Prime/Optimus Supreme

Autobot leader Optimus Prime underwent design changes for Fall of Cybertron (right). Lead artist Ivan Power stated that the redesign from his War for Cybertron incarnation (left) was to give the character a "more warrior-type feel".
Autobot
Information
Sub-group	Deluxe Vehicles, Voyagers
Function	Autobot Leader
Rank	10
Partner	Bumblebee, Arcee, Bulkhead, Ratchet, Smokescreen, Wheeljack, Ultra Magnus, Ironhide, Sideswipe, Warpath, Perceptor, Jetfire, Metroplex
Motto	"Freedom is the Right of all Sentient beings"
Alternate modes	Cybertronian truck, long-nose semi-trailer truck, all-terrain expeditionary fighting vehicle
Series	Transformers: Generations Transformers: Prime Transformers: Robots in Disguise Transformers: Rescue Bots Transformers: War for Cybertron Transformers: Fall of Cybertron
English voice actor	Peter Cullen
Japanese voice actor	Toshiyuki Morikawa (Prime) Taiten Kusunoki (Robots in Disguise)

Optimus Prime

Optimus Prime
Autobot
Information
Sub-group	Primes, Leaders, Voyagers, Legends, Cyberverse Commanders, Thirteen Primes, Legendary Knight
Function	Autobot leader
Rank	10
Partner	Sam Witwicky, Arcee, Elita-One Bumblebee, Ratchet, Wheeljack, Camshaft, Jazz, Jetfire, Comettor, Ironhide, Sentinel Prime, Grimlock, Sideswipe, Hound, Drift, Crosshairs
Motto	"Freedom is the right of all sentient beings." "Those who threaten peace, will fall into pieces" "All hands to Combat, I will lead you all to Freedom with my intelligence" "Until that day, Till all are One" "Heroes never die. I, Optimus Prime, can never be conquered"
Alternate modes	Cybertronian Entry Mode Protoform, 1997 Peterbilt 379 semi-truck, 1973 Marmon cab-over semi-Truck, Western Star 4900 Phantom Custom semi-truck
Series	Transformers film series Transformers: Revenge of the Fallen Transformers: Dark of the Moon Transformers (2010)
English voice actor	Peter Cullen (films, toys, video games) Eric Eowards (Cyber Missions) Michael Dorn (Revenge of the Fallen toy Commercials)
Japanese voice actor	Tesshō Genda (films) Yoshimasa Hosoya (Q Transformers: Mystery of Convoy)

Optimus Prime (formerly Orion Pax) is a fictional character from the Transformers franchise. Optimus Prime is consistently depicted as having strong moral character, excellent leadership, and sound decision-making skills, and possesses brilliant military tactics, powerful martial arts, and advanced alien weaponry. Optimus Prime has a strong sense of honor and justice, being dedicated to building peaceful and mutually beneficial co-existence with humans, the protection of life and liberty of all sentient species.

As the current Matrix of Leadership bearer, Optimus Prime is the de facto leader of the Autobots, a faction of a transforming species of synthetic intelligence from the planet Cybertron. The Autobots are constantly waging civil war against a rival faction of transforming robots called Decepticons. According to Bob Budiansky, co-writer of the Transformers series, Dennis O'Neil was responsible for his name.

Optimus Prime is usually depicted as being a member of an ancient Transformers race called the Dynasty of Primes, often receiving the title "The Last Prime" in many stories, in which he is depicted as being the last of the Primes. In the Transformers: Covenant of Primus, it was established that Optimus Prime was the last born of the original Thirteen Transformers. It was his unique spark and his inspiring reassurance that "All are One" that allowed the Primes to rally and succeed in their battle against the Chaos Bringer Unicron. When tragedy at last ended the era of the Primes and brought forth the new race of lesser descendant Transformers he alone chose to be reborn in the Well of All Sparks as one of them, that he might know them and their needs more completely. All memory of his past life gone, he took the name "Orion Pax" and sought his way like any other robot on the new world becoming Optimus Prime once more when receiving the Matrix of Leadership when Cybertron faced a new enemy in his former friend, Megatron and his army of followers, the Decepticons. This brings a Great War to their planet of Cybertron. Optimus's origins and personality can vary depending on which "universe" he's seen in. This origin is the most consistent between the various incarnations. Further differences are listed in the respective sections below.