cast
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Jack McBrayer
Wander (voice)
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April Winchell
Sylvia (voice)
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Keith Ferguson
Lord Hater (voice)
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Tom Kenny
Peepers (voice)
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Noël Wells
Dominator (voice)
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Sam Riegel
Emperor Awesome (voice) / Admiral Admirable (voice) / Cartoon Awesome (voice)
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Fred Tatasciore
Dracor (voice) / Lord Dominator (voice) / Pit Monster (voice) / Dragon King (voice) / Beast (voice) / Thrax (voice) / Lost and Found Guy (voice) / Kragthar (voice) / Mooplexian (voice)
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Piotr Michael
Major Threat (voice) / Ms. Myrtle (voice) / Major Threat / Jeff (voice)
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James Marsden
Sir Brad Starlight (voice)
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Rich Fulcher
Evil Sandwich (voice) / Queen / Worm (voice)
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Jennifer Hale
Ripov (voice) / Princess DeMurra (voice)
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'Weird Al' Yankovic
Dr. Screwball Jones (voice)
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Bill Fagerbakke
Prince Cashmere (voice)
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Kevin Michael Richardson
Papa Doom (voice) / Clipper (voice)
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Jeff Bennett
Harvax (voice) / Brainz (voice)
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Genevieve Hannelius
Little Bits (voice)
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H. Michael Croner
Obvious Teen (voice) / Chad (voice)
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Seth Morris
Neckbeard (voice)
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Sabrina Carpenter
Melodie (voice)
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Rob Riggle
Bill (voice)
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Ken Marino
Phil (voice)
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Bryan Callen
Gil (voice)
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Laraine Newman
Gram (voice)
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Clancy Brown
Badlands Dan (voice)
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Aziz Ansari
Westley (voice)
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Tara Strong
Beeza (voice)
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Corey Burton
Captain (voice)
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Charlie Adler
Stok (voice)
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Edie McClurg
Trudi (voice)
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Kari Wahlgren
Janet (voice)
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René Auberjonois
Maurice (voice)
- Owen Faust Huckleberry Knucklehead (voice)
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Steve Blum
General Outrage (voice)
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Dwight Schultz
Wild Card (voice)
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John Hodgman
Lord of Illumination (voice)
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Will Arnett
Ryder (voice)
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June Squibb
Stella Starbella (voice)
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Kevin McDonald
Sherblorg King (voice)
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Andy Daly
Andy the Watchdog (voice)
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Calum Worthy
Teen Leader (voice)
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Josh Sussman
Weasly Teen (voice)
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Jon Hamm
Cartoon Hater (voice)
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Eddie Deezen
Cartoon Peepers (voice)
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Frank Welker
Announcer (voice)
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Jason Ritter
Skipper (voice)
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Kristen Schaal
Mavis (voice)
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Alex Hirsch
Old Man / Soosy Du (voice)
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Sandy Martin
Dorothy (voice)
- Lyons Mathias David (voice)
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Blake Bertrand
Jamie (voice)
- Connor Wise Hank (voice)
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James Adomian
Glutteus Maximus (voice)
- Andy Bean Orbble Wright (voice)
- Fuller Condon Wilmur Wright (voice)
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Dee Bradley Baker
Bittles (voice)
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Daran Norris
Mittens (voice)
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Craig McCracken
Destructor's Sock (voice)