Rhinox

Rhinox is the Axalon's chief engineer, and the crew member the show treats as genuinely irreplaceable. Where Primal supplies conscience and Rattrap supplies scepticism, Rhinox supplies the thing that actually keeps everyone alive: he repairs the ship, builds the repair chambers, engineers the transwarp systems, and in "Aftermath" performs the impossible act of retrieving Optimus Primal's spark from the afterlife and installing it in a blank protoform. Richard Newman voices him low and unhurried, and the character rarely raises his voice.

The show is smart about not making him merely gentle. Rhinox in a bad mood is the most frightening thing on the Maximal side. In "Dark Designs", Tarantulas reprograms him into a Predacon and the result is a competent, cold and terrifyingly effective commander, better at running the Predacons than Megatron. The episode is remembered precisely because it shows what the nicest character on the show would be like without the brakes.

His defining sequence is "The Spark", where the newly created Airazor is dying and Rhinox projects his own consciousness into her spark to guide her back. It is the episode that establishes the spark as an actual soul rather than a battery, an idea the entire rest of the franchise runs on. He repeats the trick, at far greater risk, to bring Primal back.

Rhinox's flaw is that he is almost too self-effacing. He rarely argues, he absorbs whatever the mission costs, and the show quietly notes that nobody ever asks him whether he wants to be the one who goes into the void.

Rhinoceros beast mode makes him the strongest and most durable Maximal short of Optimal Optimus, capable of a devastating charge. Armed with twin rotating chainguns mounted on his shoulders. As chief engineer he is the crew's only real technician, capable of spark transfer, protoform work and transwarp engineering. Limits: he is slow, has no flight, and his greatest feats are technical rather than martial. Spark projection nearly kills him each time.

• Optimus Primal: the commander's most trusted officer, and twice the reason he is alive.
• Rattrap: a working partnership between the two most practical members of the crew.
• Airazor: he is present at the formation of her consciousness and treats her with a quiet paternal care afterward.
• Tarantulas: the Predacon scientist is his dark mirror, and the one who turns his mind against him in "Dark Designs".

IDW's Beast Wars comics use him largely as the show does. Beast Machines makes a radical departure, turning Rhinox into the Vehicon general Tankor, a ruthless antagonist working against his former crew, a change that remains one of the most contested creative decisions in the Beast Era.

Survives the Beast Wars and returns to Cybertron. In Beast Machines he is captured, reformatted into the Vehicon general Tankor, and eventually destroyed after briefly recovering himself.

• Voiced by Richard Newman, a Vancouver actor whose deliberately underplayed delivery was a conscious contrast to the shouting typical of 1980s Transformers.
• His 1996 Deluxe toy, like Dinobot's, carried the first-wave "mutant head" gimmick and shipped on the sought-after rocky-bubble card before the packaging changed.
• "Dark Designs" is frequently cited by the production team as the episode that proved the show could do character-driven horror on a CGI budget, since a mind-control plot needs no new models.
• Rhinox was revived as a toy under the Transformers Universe banner long after the show ended, one of the few Beast Wars characters to get that treatment.
• His name is a straightforward beast-mode compound, part of the first wave's deliberately plain naming convention alongside Rattrap and Cheetor.

Where the cartoon, the Marvel comics and the toy bios disagree, or where a popular claim does not hold up. We record these rather than smoothing them over.

• Whether Tankor's actions in Beast Machines reflect Rhinox's own suppressed ambition or purely Megatron's reprogramming is deliberately left ambiguous by that series and is still argued.