First Aid is one of the most empathic and compassionate beings you'll ever meet. He cares deeply about all living things. Heck, he even cares deeply about the "pain" of inanimate objects. A broken or malfunctioning can-opener will earn just as much sympathy and attention as a fellow Autobot. Otherwise, First Aid is a soft-spoken and sometimes overly cautious sort (especially when it comes to the well-being of a fellow Autobot). Still, all the Autobots know he will work long and hard to do his best for them and that their well-being matters to him more than anything, and those are quite comforting thoughts.
- French name (Canada): Ambulo
- Italian name: Sirena
Marvel comics continuity
First Aid and the other Protectobots were created on Earth by Wheeljack and the Autobots after they stole a recording of Devastator's combiner transformation sequence and modified it (and after Optimus Prime and Buster Witwicky shared a Matrix-induced vision of the future with the Special Teams in it) .
Having learned of a Decepticon plot to acquire the human-made hydrothermocline, Optimus Prime brought the Protectobots with him to Energy Futures Industries in order to guard the device. After Megatron and the Combaticons arrived ready for a fight, the Transformers allowed themselves to be convinced of a better solution by Ethan Zachary, an employee of EFI. Zachary would upload their minds into a video simulation program known as Multi-World, allowing the Transformers to do battle without damaging the hydrothermocline or the surrounding area. Inside the game world, First Aid and Streetwise were exploring Vineland when their path was blocked by a web of thick vines. First Aid wanted to blast through, but Streetwise thought better of it and merely lifted the vines out of their way. They were caught off-guard by the Combaticons Brawl and Swindle, but were then miraculously saved by the living vines they had refrained from destroying moments ago. First Aid then used his decrystallizer cannon on the Decepticons, making them brittle enough for Streetwise to shatter with a burst from his compressed air cannon.
Apparently, First Aid's pacifism doesn't extend to virtual combat.
First Aid later attempted to console a despondent Ratchet after the death of Optimus Prime.
Shortly after Grimlock took command of the Autobots, First Aid was out on patrol with Bumblebee when he was shunted into limbo by the arrival of Death's Head from the future. He was released when Death's Head was returned to his own time.
First Aid was back with the other Protectobots when Grimlock assigned them to capture the breakaway Autobot group comprising Blaster and the Throttlebots. They end up in a fight with the Combaticons, during which First Aid was seen blocking a shot from Brawl with an empty car, and only managed to apprehend Blaster.
First Aid, along with Groove, transported Blaster as they headed back towards the Ark but they once again ran into the Combaticons. First Aid was knocked down by a shot from Bruticus before the team formed Defensor. After Blaster had defeated Bruticus practically single-handed and saved a group of human children, Hot Spot let him go free.
While not seen on-panel being killed in the Underbase Saga, he was possibly deactivated in that battle, since he was next seen in a life support capsule as Optimus briefly considered using a Matrix fragment to revive him after Ratchet's disappearance.
When Optimus Prime and Grimlock discovered the threat of the Cybertronian Empire, they called in Autobots scattered across the galaxy, including First Aid. And, when Grimlock chose to disobey Prime's directives and make a tactical first strike against Jhiaxus's ships, First Aid went with him. They were quickly found out and captured, though, leaving it to Optimus to bail them out of trouble.
Sometime later, First Aid was working with a science team alongside Perceptor and Wheeljack. They attempted to find out what had devastated the population of J'asik, down to the cellular level. Samples taken from the bodies helped the team identify the killer, known as the Swarm, as an offshoot of the Cybertronian race.
First Aid is an avowed pacifist. When the Insecticons attacked an inhabited city on Earth, Optimus Prime called upon the Protectobots to evacuate the civilians caught in the crossfire. First Aid helped an injured man discovered by Streetwise. Later, as Earth's orbit was diverted to the Sun by the Combaticons, First Aid brought civilians to a meat locker that Groove and Streetwise had commandeered to help the humans cool down.
First Aid, as part of Defensor, was the arm that wielded the rifle which totally blew up Bruticus. Afterwards, he was with the Protectobots when they saved some window-washers from a burning skyscraper. Later still, First Aid and the other Protectobots were ordered to help defend Autobot Headquarters from a Decepticon attack. They merged into Defensor and activated his useless force field, which almost immediately deactivated, allowing the Decepticons to blast Defensor back into his component parts.
In the year 2006, the Autobots were asked to help the Dutch authorities deal with French rebels. First Aid wondered why the humans were always fighting amongst themselves. After dispersing the human aggressors, First Aid then helped out Blades when his comrade was shot down by Galvatron. While the Autobots held off the loser-ish Decepticons, First Aid carried Blades back to Metroplex for repairs. After he finished, the Autobot medic responded to an intruder alert and confronted the Decepticon Swindle stealing Metroplex's transformation cog. Unfortunately, Swindle managed to make off with his loot because the pacifist Autobot refused to fight back. Despite Rodimus Prime's attempts to convince him that they didn't expect First Aid to compromise his beliefs, he felt he was a liability to the Autobots and left. After helping some old junker robot chug down some oil and repair some refrigerators, First Aid received a pep talk from Hot Spot, which convinced him to come back to help the Autobots. While Trypticon and Metroplex fought it out, First Aid bravely entered the Autobot giant and re-aligned the stolen transformation cog to suit Metroplex, allowing the Autobot city to transform fully and defeat Trypticon.
Later in 2006, First Aid transported Jessica Morgan to County General Hospital after she was injured in a battle between the Technobots and the Terrorcons. Despite his helping to restore her ability to walk, the fact that First Aid was a robot had some negative consequences because some people are jerks.
Dreamwave comics continuity
First Aid was on Cybertron with the other Protectobots when they decided to counter the threat of Devastator joining the Ultracon faction.
Millions of years later, the Protectobots battled Menasor as Defensor when the Stunticons escaped from a penal facility...and lost, big time. Defensor later aided in the Autobot insurrection. After the Autobots regained power, First Aid and the Protectobots searched Shockwave's clone lab, finding Runabout and Runamuck barely alive, having been attacked by an unknown assailant. First Aid was seen administering medical help to the heavily damaged Battlechargers.
- First Aid (Protectobot, 1986, 1991)
- Team ID number: P4
- Japanese ID number: C-75
- Accessories: "Photon pistol", "Dual-Barrelled Decrystallizer Cannon" with attachment piece
- First Aid transforms into a Toyota Town Ace/Lite Ace ambulance. Due to the requirements of transformation, there are some significant compromises in the appearance of the vehicle, such as the rather visible hinge joints for the front end and the big gap in the back of the ambulance to facilitate his knee joint. There is a 5mm peg hole at the back to attach his large "Decrystallizer Cannon" to this mode.
- As a Scramble City robot, First Aid can form the limb of any super robot combination, though his nominal place is as the left arm of Defensor.
- During the initial 1986 run, there were two variants; initial runs had a die-cast metal chest, while later releases used plastic. When the toy was reissued in the European-exclusive Classics line (not to be confused by the 2006 Classics toyline), the rubsign was removed, but the rubsign indentation remained.
- This mold was also used to make Safety from the Guard City giftset in the Operation Combination toyline.
The Protectobots were to be released as part of the second wave of combiners in Generation 2. However, this entire wave was ultimately canceled for unknown reasons. First Aid was to be off-white with seafoam-green robot parts and a different rescue/ambulance deco. Vanishingly few samples—less than a dozen—of this item made their way outside Hasbro, including some on-card samples, which give him the unit number "P2".