| Person | Type | Job | Role(s) | Episodes |
|---|---|---|---|---|
 Miles Thompson | Crew | Writing | Storyboard | 52 |
 Andy Dick | Cast | Actor | Jerry Driscoll (voice) | 1 |
 Annie Potts | Cast | Actress | Tawny Zingwald (voice) | 1 |
 April Stewart | Cast | Actress | Marci McFist (voice) | 11 |
 Ben Cross | Cast | Actor | The Sorcerer (voice) | 48 |
 Billy Idol | Cast | Actor | Spikey Hair Bot (voice) | 1 |
 Bobcat Goldthwait | Cast | Actor | Dickie (voice) | 1 |
 Carlos Alazraqui | Cast | Actor | Franz Nukid (voice) | 1 |
 David Alan Grier | Cast | Actor | Rudd Rhymez (voice) | 1 |
 David Koechner | Cast | Actor | Mac Antfee (voice) | 3 |
 Dee Bradley Baker | Cast | Actor | Julian (voice) | 4 |
 Fred Tatasciore | Cast | Actor | Sundown (voice) | 5 |
 Grey DeLisle | Cast | Actress | Flute Girl (voice) | 13 |
 Jennifer Tilly | Cast | Actress | Amanda Levay / Sorceress (voice) | 1 |
 Jim Rash | Cast | Actor | Principal Slimovitz (voice) | 18 |
 Joel McHale | Cast | Actor | First Ninja (voice) | 4 |
 John DiMaggio | Cast | Actor | Hannibal McFist (voice) | 100 |
 John Oliver | Cast | Actor | Coach Green (voice) | 4 |
 John Witherspoon | Cast | Actor | S. Ward Smith (voice) | 1 |
 Judy Reyes | Cast | Actress | Señora Jorge (voice) | 1 |
 Kevin Michael Richardson | Cast | Actor | Willem Viceroy III (voice) | 100 |
 Megan Mullally | Cast | Actress | Mrs. Driscoll (voice) | 5 |
 Neil Flynn | Cast | Actor | Mr. Bannister (voice) | 2 |
 Sarah Hyland | Cast | Actress | Theresa Fowler (voice) | 11 |
 Scott Menville | Cast | Actor | Bucky (voice) | 25 |
