Private Miller
Mark
Recumbent Biker
Dave
Brent
Flint Lockwood (voice)
Rob Slolom
Officer Slater
Soldier Sam (voice)
Brian Bretter
Andy Warhol
UPS Guy
Referee / Slug (voice)
Bobby
Self - Guest
Haggard
George Armstrong Custer
Hansel (voice)
Guy Gagné (voice)
Fear (voice)
Chat Room Friend #2 (voice)
Willy
Stuart
"Crazy Shit" Voice
Rags
Eric
Self
Self / Devin / Stefon
Milo Dean
Pilot (deleted scene)
Featheringhamstan (voice)
Aaron Conners
Kyle
Culinary School Villain (uncredited)
Gazelle (voice)
Firewater / Tequila / El Guaco (voice)
Additional Voices (voice)
Tony
Doctor Turnstall
Various (archive footage)
Announcer (voice) (uncredited)
Leonard (voice)
Bloodbottler
Keith
The Cat in the Hat (voice)
Banana (voice)
Zippy
Husband Fish (Stan) (voice)
Shaman
Alpha 5 (voice)
Tad (voice)
Nick Kringle
Self - Host
Richie Tozier
J.P. Spamley (voice) (uncredited)
Self - Voice of Alpha 5 (2017)
Axel the Carnie (voice)
Desi's Store Pickup (uncredited)
Narrator
Barnaby G. Price
Captain Bill the Astronaut
John Belushi (voice)
Fear / Jordan's Joy (voice)
The Voice (voice)
Self / Stefon
Bill - Bookstore Fan
Cyrus Strange (voice)
Self - Various Characters
Professor Impossible / Phage (voice)
Pipey (voice)
Kevin
Little Kevin
Various
Dr. Malocchio (voice)
Bufo (voice)
Alec Baldwin
Plex the robot
William Dyer (voice)
Captain Seth Dozerman
Various Characters
Professor Impossible (voice)
Professor Impossible / Alien villain (voice)
Self - Cameo (uncredited)
Field Agent
(voice)
Igor, Gregor, & Timor
Dwight Difference
Tom McDougall
Barry Berkman
Self as James Quall
Mickey (voice)
Big Bob Belcher (voice)
Manacek (voice)
Adolf Hitler
Slava (voice)
Birdman
Self - Illustrious Guest
Self - Panelist
urGoh (The Wanderer) (voice)
Flame Eye/Flatside (voice)
Talent Scout
Robber
Gary
Self / Nitro
Life Coach
Illiterate Genie
Dwight
Athlete
Indiana Jones
Nitro
Wizard
Frankenstein's Monster
Cop
John Pemberton
Bill Hader