Eric Wareheim
Various

Tim Heidecker
Various

John C. Reilly
Dr. Steve Brule / Dr. Steve Brule (uncredited)

Bob Odenkirk
Cinco Announcer (voice) / Announcer (voice) / Various / Bob Paynus / Here She Co...

Richard Dunn
Self / Pep Pep / / Old Office Temp / Tim's Body / Tim's Dad

David Liebe Hart
Self

James Quall
Self

Bill A. Jones
Announcer (voice) / Infomercial Announcer (voice) / Gravy Robbers Announcer / Ti...

Ben Hur
Self /

Ron Austar
Pierre / Pierre (uncredited) / Bride's Parents

Bob Druwing
Self / Child Clown Video Instructor (voice) / Chanter / Lindsay Porch

'Weird Al' Yankovic
Uncle Muscles / Simon

Warren Stearns
Self / Old Office Temp / Audience Member (uncredited) / Pastor / Self / Gravy Ro...

Kazu Nagahama
Kaz / Kaz / E-Jury Guy / Birthday Party Guest / Tiny Hat Wearer / Self / Mourner

Zach Galifianakis
Tairy Greene / Tairy Greene as The Snuggler

Will Forte
Pall Willeaux / Will Grello / Dr. Reid Tamaranda / J.J. Pepper

Joey Brander
Seminar Student / Joey Heidecker

Rainn Wilson
Video Match Client / Cinco Spokesman / Blind Man / Bobby Stoan / Bobby Stoan (un...

Palmer Scott
Self / Sit on You Guy / Sit On You Guy

Tanese Gray
Self / Game Player