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Masters of the Universe character
First appearance He-Man and the Masters of the Universe (1983)
Created by Mattel
Portrayed by Jon Cypher
Voiced by Alan Oppenheimer (1983–1985)
Garry Chalk (2002–2004)
Liam Cunningham (2020)
Aliases Duncan
Title Master of Weapons
Children Teela (foster daughter)
Relatives Fisto (brother)
Nationality Eternian

Man-At-Arms is a fictional superhero in the Masters of the Universe franchise. The figure's tag-line is "Heroic Master of Weapons".

Character history

He-Man and the Masters of the Universe (1983)

In Filmation's animated series, Man-At-Arms — given the "real name" of Duncan — despite being a soldier and a master of weapons is primarily peaceful and prefers alternatives to fighting. Though his stature suggests a warrior, his character is primarily patterned after skilled mechanics and he likes to pass the time working on all the kingdom's vehicles. He is also Teela's foster father (something already mentioned in a couple of pre-Filmation stories), as well as a mentor to Prince Adam. The Sorceress of Castle Grayskull asked Man-At-Arms to adopt Teela because she felt that she could not raise her daughter and protect Castle Grayskull at the same time and believing that if others knew of Teela's true destiny, it would make her daughter a target.

Man-At-Arms wears armor which is slightly different from that of the standard uniform of the royal guards. His moustache was not present on the original figure, having been added by Filmation to make him look older, wiser and more fatherly — although original prototype sketches for the Man-At-Arms figure gave him a goatee beard. He is often pestered by the court jester Orko, as Orko's magic tricks often backfire directly at him. Duncan is also one of the three people who know He-Man's secret identity, as explained in the introductory sequence of the original cartoon.

Along with Adam / He-Man and Teela, Duncan is one of the cartoon series' central and most often-seen characters. He was voiced by Alan Oppenheimer for the duration of the series.

Masters of the Universe (1987 film)

In the 1987 live-action film Masters of the Universe, Man-At-Arms is portrayed by Jon Cypher. The character is shown as a veteran soldier who is still the father of Teela.

Masters of the Universe vs. The Snakemen (2002)

The 2002 cartoon Masters of the Universe vs. The Snakemen portrays Duncan as a much more serious character and more of a warrior, with a deeper connection to the Sorceress than was previously shown. As in the Filmation series, Man-At-Arms is Teela's adoptive father (and is implied to be her biological father as well). He has a close mentor/student relationship with Adam in addition to aiding He-Man and leading the Masters (as the Heroic Warriors are called in the 2002 version) and is close friends with Adam's father King Randor. It is also revealed that Fisto is his brother. Duncan's mentor, Dekker, also appears in the series. Man-At-Arms was voiced by Garry Chalk, who also voiced He-Man in The New Adventures of He-Man.

Masters of the Universe: Revelation (2020)

Man-At-Arms will appear in the upcoming Netflix animated series Masters of the Universe: Revelation, and will be voiced by Liam Cunningham.

Masters of the Universe (2021 film)

Duncan will appear in the new live-action Masters of the Universe film, scheduled for release in 2021. He is King Randor's loyal armorer and is knowledgeable in all things weapons-related. He will also serve as a main source of exposition due to his knowledge of Eternia's history.