| Person | Type | Job | Role(s) | Episodes |
|---|---|---|---|---|
 C.J. Kettler | Crew | Production | Executive Producer | 1 |
Dean Stefan | Crew | Writing | Writer | 1 |
Duane Capizzi | Crew | Production | Co-Producer, Story Editor | 1 |
Gary Hartle | Crew | Production | Supervising Producer | 1 |
Ginny McSwain | Crew | Directing | Director | 1 |
Joe Bacal | Crew | Production | Executive Producer | 1 |
 Mike Richardson | Crew | Production | Executive Producer | 1 |
Patrick Moran | Crew | Art | Creative Director | 1 |
 Phil Roman | Crew | Production | Executive Producer | 1 |
Steve Roberts | Crew | Creator | Creator, Writer | |
Robert Friedman | Crew | Production | Executive Producer | 1 |
Nina Hahn | Crew | Crew | Creative Consultant | 1 |
 Tom Griffin | Crew | Production | Executive Producer | 1 |
 April Winchell | Cast | Actress | Snot (voice) | 1 |
 Candi Milo | Cast | Actress | Madame Suspiria (voice) | 1 |
 Cree Summer | Cast | Actress | 2 | |
 Dan Castellaneta | Cast | Actor | 1 | |
 Frank Welker | Cast | Actor | Milo (voice) | 54 |
 Jess Harnell | Cast | Actor | Stinko / Stu Schpeeler (voice) | 1 |
 Jim Cummings | Cast | Actor | Detective Doyle (voice) | 54 |
 Kevin Michael Richardson | Cast | Actor | General Rod (voice) | 1 |
 Lisa Long | Cast | Actress | 1 | |
 Mark L. Taylor | Cast | Actor | Charlie Schumaker (voice) | 54 |
 Mary McDonald-Lewis | Cast | Actress | 1 | |
 Michael Daingerfield | Cast | Actor | Ace Ventura (voice) | 1 |
 Neil Ross | Cast | Actor | Lt. Mitch Kellaway (voice) | 54 |
 Paul Williams | Cast | Actor | Dr. Byron (voice) | 1 |
 Rob Paulsen | Cast | Actor | Stanley Ipkiss / The Mask (voice) | 54 |
 Tim Curry | Cast | Actor | Pretorius (voice) | 4 |
 Tress MacNeille | Cast | Actress | Mrs. Peenman (voice) | 3 |
Heidi Shannon | Cast | Peggy (voice) | 54 | |
| Person | Type | Job | Role(s) | Episodes |
