Roboto is the robot member of the Heroic Warriors, built by Man-At-Arms, with a transparent torso showing gears turning inside and a right arm that swaps between attachments. Mattel's own name for him is Robot Model 9041.
Built as a chess opponent
Most robots in 1980s toy lines were built for war. Mattel’s official origin says Roboto was built for a board game.
The Masters of the Universe Classics cardback, released in 2010, is the source of everything anyone knows about where he came from:
Real Name: Robot Model 9041. Originally built by Man-At-Arms as a chess opponent for Man-E-Faces, the robot companion was nicknamed Roboto and later given a heart-shaped emotion chip which altered his speech patterns.
That is the opening of Mattel’s Masters of the Universe Classics cardback. The rest of the card says the new programming gave him an understanding of the desire for freedom, that he then upgraded himself for battle so he could join the Masters of the Universe against evil, and that he serves them as chief strategist.
Read that carefully, because it does two unusual things. First, it makes his heroism a choice: he upgraded himself for battle after the emotion chip taught him what freedom was. Nobody drafted him and nobody reprogrammed him. He decided, and then he modified his own body to act on the decision. Second, it explains his voice. The stilted delivery is not a manufacturing default, it is the side effect of the heart-shaped chip that “altered his speech patterns”.
The card also assigns him a job most people do not associate with him at all: chief strategist for the Masters of the Universe. He is the planner, not the muscle, which is a strange thing for a figure sold on the strength of a spinning-gear gimmick.
His card title is “Heroic Mechanical Warrior”, and the vintage 1985 card front carried the same line in lower case, “Heroic mechanical warrior”. His real name on the Classics card is Robot Model 9041.
One paragraph, two transcriptions
We hold two independent transcriptions of that cardback and they do not match word for word. The differences are small and change nothing about the substance, but a reader who wants a verbatim quote deserves to know they exist:
| Phrase | ItsAllTrue transcription | actionfigure411 transcription |
|---|---|---|
| the implant | ”emotion chip" | "emotion program” |
| the clause after it | ”Under the influence of his new programming" | "Under the influence of this new programming” |
| the closing line | ”unstoppable robotic strength" | "unstoppable robot strength” |
Neither has been checked against a photograph of a real card back. Our working rule is to quote the ItsAllTrue text, which won both of the head-to-head tests we have run so far, but chip versus program remains open until someone photographs the card.
The figure with the see-through chest
The 1985 Mattel figure is the reason people remember him. The torso was moulded in clear plastic over a working gear train, and twisting the figure at the waist spun coloured gears visibly inside the chest. It is among the most mechanically elaborate figures in the whole vintage line, and it is the detail almost everyone leads with when describing him.
The right arm was interchangeable, on the same principle as Trap Jaw’s. On the exact contents of that swap set our own catalogue currently gives more than one answer, so we are not going to state a definitive list until that entry is settled.
Roboto in Filmation
The Filmation series used him sparingly. Our episode data records a single appearance, “Happy Birthday Roboto”, in which Modulok captures him and reprograms him to carry out his own schemes, and Alan Oppenheimer is credited for one episode of the 130.
The reprogramming plot is worth noting against the cardback. Mattel’s origin makes Roboto’s heroism self-chosen, arrived at through a chip that gave him the concept of freedom. Filmation’s one significant Roboto story is about that same autonomy being taken away by someone else’s programming. The two accounts were written decades apart and do not reference each other, but they are pointed at the same idea.
| Production | Voice |
|---|---|
| Filmation, He-Man and the Masters of the Universe (1983-1985) | Alan Oppenheimer 1 of 130 episodes |
| Masters of the Universe: Revelation (2021-2023) | Justin Long Long voices Roboto, not Trap Jaw. Trap Jaw in Revelation is Diedrich Bader. |
| Masters of the Universe (2026 film) | Kristen Wiig Roboto is female in this version |
Kristen Wiig plays Roboto in the 2026 live-action film, and Roboto is female in this version.
Wiig's casting was announced in August 2025 and reported by The Hollywood Reporter and AWN among others, with the character described as a robot whose mechanical body gives her great strength and resilience. A number of outlets wrongly credited Wiig as Evil-Lyn; Evil-Lyn is Alison Brie. Mattel's 2026 movie toy line includes a Roboto Combat Ready figure, so the character is not a background cameo.
More on the 2026 Masters of the Universe film
Who is the robot in He-Man?
Roboto, a robot counted among the Heroic Warriors and built by Man-At-Arms. He is the one with the clear plastic chest showing gears turning inside.
Why was Roboto built?
As a chess opponent for Man-E-Faces, according to Mattel's Masters of the Universe Classics cardback. He was given a heart-shaped emotion chip later, and it was that chip that led him to upgrade himself for combat.
What is Roboto's real name?
Robot Model 9041, per the Classics cardback. No earlier Mattel product gave him one.
Is Roboto a girl in the 2026 movie?
Yes. Kristen Wiig plays Roboto, and Roboto is female in the 2026 live-action film. Every previous version of the character is male.
Did Kristen Wiig play Evil-Lyn?
No. That role is Alison Brie's. A number of outlets credited Wiig with it, but Wiig plays Roboto.
Who voices Roboto in Revelation?
Justin Long. The credit is often attached to Trap Jaw by mistake; Trap Jaw in Revelation is Diedrich Bader.
What job does Roboto have among the Masters of the Universe?
Chief strategist, per Mattel's Classics card. It is the least remembered thing on that card and arguably the most interesting.
