Danny Cooksey
(voice)
Sam McMurray
Lt. Griswald (voice)
Myles Jeffrey
T.J. Detweiler (voice)
Dabney Coleman
Principal Prickley (voice)
Erik von Detten
Erwin Lawson (voice)
Ross Malinger
Older T.J. (voice)
Elizabeth Daily
Digger #1 (voice)
Tara Strong
Spinelli's Doll (voice)
Andrew Lawrence
Younger T.J. (voice)
Pamela Adlon
Spinelli (voice)
Ashley Johnson
Gretchen Grundler (voice)
Francesca Marie Smith
Upside-Down Girl / Ashley T / Swinger Girl (voice)
Anndi McAfee
Ashley A (voice)
Courtland Mead
Gus Griswald (voice)
Jane Curtin
(voice)
Miles Marsico
(voice)
Kath Soucie
Hector / Cindy / Gus's Mom (voice)
April Winchell
Miss Finster (voice)
Michael Shulman
Francis the Hustler Kid (voice)
Allyce Beasley
Miss Grotke (voice)
Rickey D'Shon Collins
Vince LaSalle (voice)
Jason Davis
Mikey (voice)
Justin Shenkarow
Gelman (voice)
Lane Toran
King Bob (voice)
Rachel Crane
Ashley Q (voice)
Aria Noelle Curzon
Cornchip Girl (voice)