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Background information
Feature films
Short films
Television programs Darkwing Duck
Video games
Park attractions
Portrayed by
Portrayed by
Voice Joey Camen
Performance model
Honors and awards
Character information
Full name
Other names
Personality Dim-witted, funny, friendly, kind, good-hearted
Appearance Large, round, teal anthropomorphic Stegosaurus, red hairdo, red trousers
Occupation Dr. Fossil's assistant (formerly), Justice Ducks member, hot dog vendor
Alignment Good
Goal To help Darkwing Duck
Home St. Canard
Allies Darkwing Duck, Launchpad McQuack, Gosalyn Mallard, Honker Muddlefoot, Morgana McCawber, Gizmoduck, Neptunia, Dr. Fossil (formerly)
Minions Justice Ducks
Enemies Negaduck, Megavolt, Liquidator, Bushroot, Quackerjack, Dr. Fossil
Likes Helping Darkwing and his friends
Dislikes Fire, danger
Powers and abilities Size, strength
Weapons Tail
Fate Defeats the Fearsome Five and gives Darkwing his change, though he tells him to keep it
Quote "I used to be a duck."

Stegmutt is a Stegosaurus in Darkwing Duck, who was originally a duck who was turned into a dinosaur. Stegmutt first appeared as the tetartagonist in the two "Just Us Justice Ducks" episodes AKA Justice Ducks Unite (44 and 45 in production order), but due to the episodes airing out of order, his introduction episode, "Jurassic Jumble" (28th in production order), aired a week later. He also appears in "Darkwing Doubloon," his only other episode. He was voiced by Joey Camen.


Stegmutt is rather dim-witted but has a good heart. He likes helping Darkwing Duck and his friends. He also has a strong dislike for fire, and when he finds the source, he puts it out by slamming it onto the ground. He became a member of the Justice Ducks and helped Darkwing defeat the Fearsome Five. He's good-natured, simple, and honest to a fault.

It's unclear if Stegmutt's simple-minded nature is his own, or is the result of his transformation at the hands of Dr. Fossil. After all, Stegosaurus are famous for having "a brain the size of a walnut." His low-range job as a janitor doesn't help to clarify matters.


He once was the assistant of a mad scientist named Dr. Fossil. In one of his experiments, Dr. Fossil transformed Stegmutt into a dinosaur using the Retro-Evolution Gun. Eventually, Gosalyn and Honker convince Stegmutt that Dr. Fossil is evil, and he turns against him.

Before Stegmutt was a dinosaur, he used to be a duck. He also used to work as a janitor at the Natural History Museum, where he continues to live in hiding as one of the displays. Due to Stegmutt's friendly nature, he becomes part of the "Justice Ducks." He is also a hot dog vendor in his spare time, a pathologically honest one who chases Darkwing Duck throughout both halves of "Just Us Justice Ducks" to return his spare change.


  • The spikes Stegmutt uses to open his soda cans are called a "Thagomizer," a term coined in Gary Larson's "The Far Side" cartoon strip for the previously unnamed feature of the Stegosaurus (yet another inadvertent tribute to Larson's classic comic in DwD).


Darkwing Duck Logo

Media: Darkwing Duck (Episode List) | Walt Disney's World on Ice: Double Feature... Live! | NES game | Boom! Studios comic | Joe Books comic | Videography

Books: High Wave Robbery | The Silly Canine Caper | The Darkest Night

Heroes and Allies: Darkwing Duck | Launchpad McQuack | Gosalyn Mallard | Honker Muddlefoot | Tank Muddlefoot | Herb and Binkie Muddlefoot | Gizmoduck | Morgana McCawber | Neptunia | Stegmutt | J. Gander Hooter | Derek Blunt | Vladimir Goudenov Grizzlikof | Comet Guy
Villains: Negaduck/Negatron | Bushroot | Megavolt | Liquidator | Quackerjack | Steelbeak | Taurus Bulba | Hammerhead Hannigan | Hoof and Mouth | Tantalus | Clovis | Tuskernini | Dr. Fossil | Phineas Sharp | Professor Moliarty | Ammonia Pine | Ample Grime | Paddywhack | Lilliput Gooney | Jambalaya Jake | Gumbo | Bug Master | High Command | Major Synapse | Hotshot and Flygirl | Splatter Phoenix | Camille Chameleon | Anna Matronic | Isis Vanderchill | Johnny T. Rex | Fluffy | Dark Warrior Duck

Vehicles/Gadgets: Ratcatcher | Thunderquack | Darkwing Duck's gas gun | Ramrod | Super Sensitive Darkwing Duck-tector

Locations: St. Canard | Negaverse

Songs: Darkwing Duck Theme Song | Little Girl Blue | Kickin' in the Groove | I'm Darkwing Duck

See also: DuckTales | The Disney Afternoon | Disney XD (Netherlands) | Justice Ducks | Fearsome Five | F.O.W.L. | S.H.U.S.H.

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