Transformers: The Movie, Ultra Magnus was voiced by Robert Stack. For subsequent episodes of the animated series, he was voiced by Jack Angel, who had previously portrayed characters such as Astrotrain, Ramjet, and Omega Supreme. His character was most familiar for uttering the line "I can't deal with that now" whenever things got bad. Transformers: The Headmasters Although the American animated series ended with the three-parter "The Rebirth" storyline, it was decided in Japan to continue production of new episodes. To that end, "The Rebirth" wasn't aired there, and in its place, a new 35-episode series, Transformers: The Headmasters was in production. Earlier Japanese-exclusive media such as Scramble City and TV Magazine's manga stories had previously detailed Ultra Magnus's earlier arrival on Earth and his role in the creation of Metroplex. In Headmasters, Magnus was a supporting character for the early part of the series, once again in charge of Autobot City on Earth, taking a proactive role in the defense of the planet against the Decepticons when they re-emerged in 2011. During the opening skirmish of the renewed conflict, Magnus crossed swords with the large and powerful Decepticon ninja, Sixshot, who went on to lead the villains' earth-based forces, leading to a smoldering enmity between the two. Their rivalry eventually came to a conclusive end when Sixshot and Magnus engaged in a one-on-one duel. Magnus was no match for the multiple powers of Sixshot's numerous transformations and was felled by his seventh, secret mode. With his dying gasp, Magnus told the Autobots to protect the Earth. At Metroplex's request, the Autobots buried Magnus on Earth. When Ultra Magnus died, his body didn't turn monochromatic, like all other Transformers who had died in the past (including those in the Headmasters series). Whether this is due to his body being composed of external armor over his truck-cab exoskeleton (like the original toy and Dreamwave comic), or simply because of animator error, is open to fan interpretation. As "The Headmasters" cartoon is set in an alternative "Japanese continuity" which officially doesn't belong to the original American series that ended with the 4th season in a three-piece episode titled "The Rebirth", Ultra Magnus did not die in the scope of the original continuity. Marvel Comics Ultra Magnus did not appear in Marvel Comics' American Transformers comic book series outside of a comic book adaptation of a third-season episode of the animated Transformers series.