Joe: A Real American Hero toyline, comic books and animated series.

[1] Mutt is characterized as a natural with animals and as having had several pet dogs in his youth, which he trained exceptionally well.

[2] In the UK and European Action Force canon Mutt is listed as coming from Madrid in Spain.

[4] A new version of Mutt and Junkyard was released as an action figure in 1992, as part of the DEF (Drug Elimination Force) line.

In 2004, Mutt and Junkyard were released as part of a Toys R Us exclusive "Anti-Venom Task Force" six-pack.

Joe's response to Doctor Mindbender and Cobra Commander turning civilians into dangerous monsters.

Though the Joes start a mini-resistance movement and fight back, Cobra's use of adjustable brainwashing allow them to escape attention for some time.

[8] Mutt and Junkyard later work with the K9 MP team of Law and Order to provide perimeter security for the current Joe base.

A few clues lead to the four Joes uncovering a massive Cobra outpost underneath the very bar they are drinking at.

[10] Confirmation comes much later when an anonymous tip leads Joes to uncover more Cobra influence in Delhi Hills.

Mutt was voiced by Bill Morey, while Junkyard's vocal effects were provided by Frank Welker.

While pursuing Cobra, Flint, Mutt and Roadblock are caught in a tornado created by Destro's Weather Dominator weapon.

Constructing a gyrocopter from Skystriker parts, the Joes attempt to fly away, but Roadblock lets Flint and Mutt escape on their own.

They enter a café, where they defeat a group of thugs and meet Shipwreck, whom they recruit into the Joe team.

Mutt aids Dusty in learning about Cobra's plans, along with installing a device to allow the Joes on Earth to receive transmissions from the space station.

He transforms them into their smaller and less dangerous versions by blowing it, allowing the Joes to retake the space station.

Shortly after, Mutt and Junkyard encounter Destro, who offers to explain how Cobra turned the Joes' army against them.

[16] In the episode "Cobra Claws Are Coming to Town", Mutt reveals his parents neglected him during the holiday season.

After Junkyard dies from eating a chocolate statue dedicated to Roadblock, Mutt, alongside the rest of G.I.