Walter Barnett – US government official and friend of the Autobots. Originally suspicious of the Autobots, Barnett became convinced they were friendly after seeing they chose not to fight back when attacked by humans. Barnett saved the lives of the Throttlebots by transferring their “brains” to toy cars before their bodies were destroyed.
Berko – Originally a homeless man, abducted into the Cosmic Carnival. Eventually becomes the Cosmic Carnival’s ringmaster.
G. B. Blackrock – Millionaire and friend of the Autobots. Blackrock owns several companies, most prominently a chain of gas stations. He is a bit of a playboy and likes to flaunt his riches. Following an attack by the current Decepticon commander, Shockwave, at one of his seabound oil refineries, one of Blackrock’s workers, Josie Beller, was crippled.[1] Feeling responsible for her neurological injuries, Blackrock swore revenge on the Transformers by developing an anti-robot weapon. Later, though, Blackrock joins the Autobots. In the latter part of the series, Blackrock founded a team of human superheroes called the Neo-Knights. Blackrock himself does not have super powers, he simply acts as the team’s manager. In the ReGeneration One comics by IDW Publishing, two decades of constant war against the Decepticons has forced Blackrock to abandon his millionaire playboy lifestyle and become a survivalist warrior, joining Spike Witwicky’s resistance group against the Decepticons. The war has disabled Blackrock, leaving him requiring a mobile chair device, similar to the wheelchair-using Professor Charles Xavier. Blackrock also has a Shattered Glass counterpart by the name of R.J. Blackrock.
Carissa Carr – Science fiction film actress. Carr played the lead female character in a movie, where the DecepticonPretenderSkullgrin was chosen as the main villain. This led to an enormously successful movie career for Skullgrin, but it ended abruptly when Circuit Breaker discovered he was a robot and attacked him.
Charlene – Woman who accidentally became Skids‘ friend.
Galen Kord – A Nebulan who preceded Spike Witwicky as the biological binary-bonded partner of Fortress Maximus. Like the other Nebulan partners of the Headmasters, Galen was binary-bonded to Fortress Maximus already on Nebulos, before the Nebulan council drove all the Transformers and their Nebulan partners off their homeworld. Galen had a romantic interest with Llyra, Lord Zarak’s daughter, but was forced to abandon it after both he and Zarak (binary-bonded to Scorponok) were driven off Nebulos. Galen was killed by Scorponok inside a mountain cave on Earth, inviting Spike Witwicky to succeed him. Unlike all other Nebulan partners appearing in the comics, Galen was never produced as a toy.
Hook, Line and Sinker – Assassins created by Unicron. They originally were three minor criminals from the planet Ghennix. As Unicron devoured the planet, he reformatted the criminals into three powerful assassins to serve as Galvatron‘s assistants. However, Galvatron betrayed his master and killed Hook, Line and Sinker.
Jake “Jackhammer” Jackson – Professional wrestler. He participated in a couple of wrestling matches against the Autobot Micromaster Roadhandler. His nickname comes from his use of a real jackhammer in the ring.
J’Oh – Bartender. He serves as the bartender of the Central Space Station and is decidedly unfriendly to robots, whom he refuses to serve anything.
Llyra – Lord Zarak’s daughter. In love with Galen Kord, Llyra was torn between two devotions. Llyra was left heartbroken on Nebulos as both her father and her lover were forced to depart, having affiliated themselves with opposing sides.
Mecannibals – A race of robots that eat other robots. These bright red, spherical robots live on a spaceship in orbit around the Central Space Station. The Autobot Sky Lynx was captured by them and about to be eaten, but he was rescued by the Pretenders Cloudburst and Landmine.
The Mechanic – Notorious car thief. The Mechanic’s criminal career underwent a huge improvement after he accidentally stole the Autobot Ratchet, who he thought was just a normal ambulance. This gave the Mechanic access to the Ark‘s technology, which he used to fit various weapons into stolen cars. His criminal career was finally put to an end by a co-operation with the Autobot Blaster and the local police.
Circuit Breaker (Josie Beller). Invented a kind of bodysuit with embedded circuits that allowed her to move her body after a spinal cord injury, disrupt the circuits of electronic devices and Transformers, and fly.
Dynamo (Hector Dialonzo). Can channel the force of the Earth itself and use it to his advantage.
Rapture (Katrina Vesotzky). Can project images into a person’s or other animal’s or even a robot’s mind, causing him/her to dream and forget the real situation.
Thunderpunch (Lee Gruber). Has tremendous strength.
“O” – Buster Witwicky’s friend. “O”, whose real name has not been mentioned, only appeared in the very early issues. He usually likes to hang out with Buster and his girlfriend Jessie.
Rorza – Stunt driver. A very minor character, Rorza’s only appearance was as a stunt driver in the Cosmic Carnival, where he tried to stop Sky Lynx and Berko from escaping.
Cecilia Santiago – Talk show host. A fairly minor character, she presented a talk show where the Autobot Micromaster Roadhandler appeared as a guest during his career as a professional wrestler.
Scraplets – Robotic parasites. Scraplets are semi-sentient robotic lifeforms, about five centimetres tall. Like the Transformers, they can transform between two modes: from various humanoid or animal modes to nuts or bolts. Scraplets feed on other robotic lifeforms, fastening themselves in the host robot’s armour plating using some kind of corrosive agent. Using the raw materials of the host, a Scraplet can multiply itself, creating more Scraplets. The Scraplets’ only weakness is water. When doused with water, a Scraplet loosens its grip on the host, allowing it to be safely destroyed without harming the host. In Transformers Prime, Scraplets are considered to be Cybertron’s most dangerous form of vermin and resemble small orbs similar in size to a soccer ball with eight pairs of legs, a mill of razor-sharp teeth, and the ability to fly in pursuit of prey. As mentioned by Bulkhead and Ratchet, they travel in large swarms and can dismantle large transformers in minutes as was seen in “Orion Pax: Part 3” when they were used by Jack Darby to kill an Insecticon. Unlike their G1 counterparts, Scraplets in Transformers Prime cannot transform, and have a severe weakness to extreme cold; being easily dispatched by Jack Darby’s fire extinguisher and the subzero temperatures of the Arctic where they were lured to by Bulkhead in “Scrapheap”.
Soriza – Nebulan council member.
Spider-Man – Human superhero. In issue #3 Spider-Man was sent by S.H.I.E.L.D to find Gears and help the Autobots to fight the Decepticons. After fighting the Decepticons, Optimus Prime tells Spider-Man it is the Autobots’ fight and very dangerous. Spider-Man accepts and leaves.
Ethan Zachary – Computer programmer. The owner and chief software architect of a computer games company. It was in his company that Optimus Prime and Megatron fought in a virtual battle, ending with the apparent death of Optimus Prime. However, Zachary had saved Optimus Prime’s mind on a floppy disk, and he was later resurrected as a Powermaster.
The Keeper – Ancient being watching over Primus’s slumber. The Autobot Pretender Classics met him in the centre of Cybertron. The story where the Keeper appears is the first appearance of Primus in the American Transformers comic.
Last Autobot – Legendary Autobot warrior, later identified by the name Autonomous Maximus. The Transformers equivalent of a king asleep in mountain, he has been dormant in the centre of Cybertron for millions of years, until he was finally called upon to defeat the Decepticons at Klo. This story marks the end of the American G1 Transformers comic.
Lord Straxus– Former Decepticon leader and would-be rival of Megatron.
Maccadam – A mysterious Transformer who runs Maccadam’s Old Oil House on Cybertron and who keeps his identity concealed from the various patrons; he is thought by some to be a member of the Thirteen Primes. The oil house would be featured in several comics and an episode of Transformers: Animated, and Maccadam himself would later appear in his establishment in the novel Transformers: Retribution. This Maccadam is described as an older Cybertronian with a short but strong body decorated with purple and gold armor and sporting a goatee. Wheeljack recognized him as the robot who always played the piano in the oil house, and Maccadam was revealed to be the center of Ultra Magnus’ spy network in the Decepticon-held Iacon.
Stockade – an enforcer back on Cybertron; threatening neutral Cybertronians to stay neutral or punishing them. He was one of the Decepticons who was brought to Earth by Starscream and the other surviving Decepticons. According to the biography printed in the collected Reign of Starscream books Stockade is a thug who relished his job as forman of a Decepticon work gang.
Emirate Xaaron – Autobot chieftain. Created by Simon Furman and first appeared in the UK comic. His first US comic appearance was as a leader of an Autobot rebel squad trying to overthrow Decepticon suppression. This drew him deeper and deeper into the secrets of Cybertron’s past, until he finally became an avatar of the god Primus.
