- Bennett, Jeff - Baloney, Charlton Woodchuck, Additional Voices@ (2)
- Bernadette, Peters - Rita@ (6)
- Bodett, Tom - Narrator@ (3)
- Brown, Julie - Minerva Mink@ (2)
- Cartwright, Nancy - Mindy@ (16)
- Cummings, Jim - Narrator, Additional Voices@ (6)
- Harnell, Jess - Wakko Warner, Walter Wolf@ (3)
- LaMarche, Maurice - The Brain, Squit, Wakko's belches@ (4)
- MacNeille, Tress - Dot Warner, Hello Nurse, Marita Hippo, Mindy's Mom@ (4)
- Paulsen, Rob - Yakko Warner, Pinky, Dr. Otto von Scratchansniff@ (4)
- Ross, Neil - Additional Voices@ (3)
- Rugg, Paul - Mr. Director, Albert Einstein, Additional Voices@ (8)
- Stein, Ben - Pip Pumphandle@ (3)
- Welker, Frank - Mr. Plotz, Ralph T. Guard, Chicken Boo, Buttons, Runt, Flavio@ (3)
