- Tom Savini - Himself (voice)
- Gillian Jacobs - Carl's Wife (voice)
- Seth MacFarlane - Wayne (voice)
- Robert Smigel - The Number One Hundred (voice)
- Larry Miller - Larry Miller (voice)
- Ted Nugent - Ted Nugent (voice)
- Andy Merrill - Rice Henchmen (voice)
- Brendon Small - Rice Henchmen (voice)
- Patton Oswalt - Ezekial (voice)
- Don Kennedy - Lance (voice)
- Don Kennedy - Assisted Living Dracula (voice)
- Don Kennedy - Vegetable Man (voice)
- Tommy Blacha - Dr. Wongburger (voice)
- Tommy Blacha - Mr. Wongburger (voice)
- Michael Kohler - Himself
- Tim Heidecker - Basketball (voice, as Timothy Heidecker)
- John DiMaggio - Muscles (voice)
- Paul F. Tompkins - Angel (voice)
- Carl Jones - Zucotti Manicotti (voice)
- Henry Zebrowski - Toby
- Fred Armisen - Robot Husband (voice)
- Justin Roiland - (voice)
- Brent Hinds - (voice)
- Brann Dailor - (voice)
- Troy Sanders - (voice)
- Joshua Homme - (voice)
- Scott Hilley - (voice)
- Glenn Danzig - (voice)
- Neko Case - Chrysanthemum (voice)
- Kelly Hogan - The B.J. Queen (voice)
- John Kruk - John Kruk (voice)
- George Lowe - Jet Chicken (voice)
- George Lowe - Standards & Practices Announcer (voice)
- George Lowe - George Lowe (voice)
- Matt Berry - Allen (voice)
- Rachel Dratch - Robot Wife (voice)
- Eric Bauza - Fantastisplooge Announcer / Glorfinoid (voice)
- Lesley Sharp - Glorfinoid (voice)
- Robert Webb - Glorfinoid (voice)
- TJ Hassan - Wesley Snipes (voice)
- Susan Bennett - (voice)
- Dan Fogler - Glen (voice)
- Dan Fogler - (voice)
- Maurice LaMarche - (voice)
- James Austin Johnson - (voice)
- Gary Anthony Williams - Situpon (voice)
- Peter Mark Kendall - Situpon Agent (voice)
- Brian Cox - Anubis (voice)
- Lance Henriksen - Vanessa (voice)
- Diallo Riddle - Terry the Singing Tank Engine (voice)
- Bashir Salahuddin - (voice)
- Danny Trejo - Dewey (voice)
- Will Forte - Alien (voice)
- Mike Judge - Alien (voice)
- Brett Gelman - Rocket Horse (voice)
- Kyle Kinane - Doctor (voice)
- Edward Hastings - Ned Hastings (voice)
- Katie Kneeland - (voice)
- Todd Hanson - Narrator (voice)
- Todd Hanson - The www.yzzerdd.com (voice)
- Todd Hanson - Napkin Lad (voice)
- Michael Kohler
Lance Henriksen hace el papel de Vanessa (voice).
Larry Miller interpreta a Larry Miller (voice) en la serie.
Brian Cox hace el papel de Anubis (voice).
Dave Willis hace el papel de Meatwad / Carl (voice).
Dana Snyder hace el papel de Master Shake (voice).
Carey Means interpreta a Frylock (voice) en la serie.
C. Martin Croker interpreta a Dr. Weird / Steve / Bird (voice) en la serie.
Schooly-D interpreta a Narrator en la serie.
Schoolly D interpreta a Narrator en la serie.
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