Bud Macintosh
Doyle Johnson
Dr. Noah Faulkner
Monique
Jen
William Leaky
T.C. Romulus
Olivia Biggs
Mimi Simkins
Denise
Russell
Doyle's Mother
Trent
Parker
Roach
Dr. Petra von Kant
Tenacious D
Partier
Drummer
Young Doyle
Young Bud
Guard
Reporter Joachim West
Prof. Bloom
Guy
Singer
Guitarist
Bio-Dome Technician
Anchor Aries West
Vigilante
Cmdr. Gates, SWAT Team
Assistant
Narrator
Axl
Woman in Bandstand