Master Doom is the leader of the Doom Lords, and by extension Master Frown's boss.

She is voiced by Grey Griffin.


Master Doom has a green head with grey-blue spikes on top. Her left eye has a light blue iris, and her right eye has a purple one.

She wears a black robe with an imposing green and purple collar.


Season 1

Season 2

Season 3


  • Master Doom's dialogue is processed in a way to make it sound like she speaks with multiple voices at once. In the Japanese-language version of the show, the aforementioned multiple voices sound as if they are a combo of both male and female.
  • Master Doom's eyes could be described as possessing complete heterochromia of the iris.


Main article: Master Doom (Character)/Gallery

Main: Unikitty Unikitty icon / Puppycorn Puppycorn icon
Dr. Fox Dr. Fox icon / Hawkodile Hawkodile icon / Richard Richard icon

Antagonists: Master Frown Master frown logo / Brock Brock logo / Abugail / Doom Lords / Cupcake Monster / Eagleator Eagleator logo / Ted Butter / The Tooth Fairy / Giant Jelly Creature / Groovetron / Father Time / Friend Guy / Lord LandLord / Sandman / Score Creeper Score creeper logo / Wish Coins
Supporting: Action Police / Asteroid / Beatsby / Beau / Bim-Bom / Cookie Guy / Craig / Crankybeard / Dino Dude / Dr. Fox’s Robots Dr fox robot icon / Golden Goose / Esteban / Falcomodo / Kickflip / FeeBee / Security Robot / LEGO Batman / Mark 1 / M'Ladybug / Old Timey Mustache Man / Pet Pet Pet pet logo / Really Old Edith / Rock Guy / Santa / Sssnake / Stellacopter / Stocko / Theodore / Toaster and Toast / Volcano / Zelda / Background Characters

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