 | David Coburn | ... | Captain Planet / ... (58 episodes, 1990-1996) |

| LeVar Burton | ... | Kwame / ... (58 episodes, 1990-1996) |
 | Joey Dedio | ... | Wheeler (58 episodes, 1990-1996) |
 | Janice Kawaye | ... | Gi (58 episodes, 1990-1996) |
 | Scott Menville | ... | Ma-Ti (58 episodes, 1990-1996) |
 | Kath Soucie | ... | Linka / ... (58 episodes, 1990-1996) |

| Whoopi Goldberg | ... | Gaia (54 episodes, 1990-1992) |

| Frank Welker | ... | Suchi / ... (29 episodes, 1990-1995) |

| Edward Asner | ... | Hoggish Greedly / ... (16 episodes, 1990-1992) |

| James Coburn | ... | Looten Plunder (13 episodes, 1990-1992) |

| Meg Ryan | ... | Dr. Blight (13 episodes, 1990-1991) |

| John Ratzenberger | ... | Rigger (12 episodes, 1990-1992) |

| Martin Sheen | ... | Sly Sludge (12 episodes, 1990-1992) |

| Tim Curry | ... | MAL (11 episodes, 1991-1992) |

| Maurice LaMarche | ... | Verminous Skumm / ... (10 episodes, 1991-1992) |
 | Dean Stockwell | ... | Duke Nukem (9 episodes, 1990-1992) |
 | S. Scott Bullock | ... | Argos Bleak (8 episodes, 1990-1992) |
 | Mary Kay Bergman | ... | Dr. Blight (6 episodes, 1992) |

| Jeff Goldblum | ... | Verminous Skumm (5 episodes, 1990-1991) |

| Sting | ... | Zarm (4 episodes, 1990-1992) |
 | David Rappaport | ... | MAL (4 episodes, 1990-1991) |
 | Cam Clarke | ... | Ooze (3 episodes, 1991-1992) |

| Louis Gossett Jr. | ... | Commander Clash (3 episodes, 1991-1992) |
 | Charles Adler | ... | Piebald / ... (2 episodes, 1991-1995) |

| Clyde Kusatsu | ... | Curator (2 episodes, 1991) |
|
 | Esa Te Haurangi | ... | Additional Voices (unknown episodes, 1993) |
 | Lewis Arquette | ... | Additional Voices (unknown episodes) |
 | Christopher Daniel Barnes | ... | Additional Voices (unknown episodes) |
 | Arissa Bright | ... | Additional Voices (unknown episodes) |

| Townsend Coleman | ... | Additional Voices (unknown episodes) |

| Judyann Elder | ... | Additional Voices (unknown episodes) |
 | Ron Gans | ... | Additional Voices (unknown episodes) |

| Brian George | ... | Additional Voices (unknown episodes) |
 | Angel Harper | ... | Additional Voices (unknown episodes) |

| April Hong | ... | Additional Voices (unknown episodes) |

| Helen Hunt | ... | Additional Voices (unknown episodes) |
 | Buster Jones | ... | Additional Voices (unknown episodes) |

| Josh Keaton | ... | Additional Voices (unknown episodes) |
 | Mark Langston | ... | Additional Voices (unknown episodes) |
 | Danny Mann | ... | Additional Voices (unknown episodes) |
 | Mona Marshall | ... | Additional Voices (unknown episodes) |
 | Brian Stokes Mitchell | ... | Additional Voices (unknown episodes) |

| Minae Noji | ... | Additional Voices (unknown episodes) |
 | Nicholas Omana | ... | Additional Voices (unknown episodes) |
 | Alan Oppenheimer | ... | Additional Voices (unknown episodes) |

| Brock Peters | ... | Additional Voices (unknown episodes) |
 | Patrick Pinney | ... | Additional Voices (unknown episodes) |
 | Susan Silo | ... | Additional Voices (unknown episodes) |

| Kevin Smets | ... | Additional Voices (unknown episodes) |

| Marcelo Tubert | ... | Additional Voices (unknown episodes) |
 | Olivia Virgil White | ... | Additional Voices (unknown episodes) |
 | R.J. Williams | ... | Additional Voices (unknown episodes) |

| Michael Wise | ... | Additional Voices (unknown episodes) |
|
| Pat Agnasin | .... | prop designer (26 episodes, 1990-1991) |
| Gregg Davidson | .... | storyboard artist (26 episodes, 1990-1991) |
| Scott Heming | .... | storyboard artist (26 episodes, 1990-1991) |
| Rick Hoberg | .... | storyboard artist (26 episodes, 1990-1991) |
| Romeo Lopez | .... | storyboard artist (26 episodes, 1990-1991) |
| Don Manuel | .... | storyboard artist (26 episodes, 1990-1991) |
| James A. Mitchell Jr. | .... | storyboard artist (26 episodes, 1990-1991) |
| Mario Piluso | .... | storyboard artist (26 episodes, 1990-1991) |
| Brad Rader | .... | storyboard artist (26 episodes, 1990-1991) |
| Paul Scarzo | .... | storyboard artist (26 episodes, 1990-1991) |
| Vincent Waller | .... | storyboard artist (26 episodes, 1990-1991) |
|
| Hanna Strauss | .... | storyboard artist (unknown episodes) |
| John Wong | .... | designer (unknown episodes) |
| |
|
| Derdad Aghamalian | .... | color key artist (26 episodes, 1990-1991) |
| Timothy Barnes | .... | color backgrounds (26 episodes, 1990-1991) |
| Tim Callahan | .... | background designer (26 episodes, 1990-1991) |
| Kathi Castillo | .... | character designer (26 episodes, 1990-1991) |
| Eufronio R. Cruz | .... | background designer (26 episodes, 1990-1991) |
| Paul Fetler | .... | color key artist (26 episodes, 1990-1991) |
| Adriana M. Galvez | .... | color key supervisor (26 episodes, 1990-1991) |
| Li René Harmon | .... | color key artist (26 episodes, 1990-1991) |
| Kent Holaday | .... | lip assignment (26 episodes, 1990-1991) |
| Paula Lafond | .... | character designer (26 episodes, 1990-1991) |
| Abel Laxamana | .... | color backgrounds (26 episodes, 1990-1991) |
| Norly Paat | .... | color backgrounds (26 episodes, 1990-1991) |
| Vladimir Spasojevic | .... | background designer (26 episodes, 1990-1991) |
| Vincent Davis | .... | timing director (15 episodes, 1991) |
| Jim Duffy | .... | timing director (15 episodes, 1991) |
| Stan Phillips | .... | timing director (15 episodes, 1991) |
| |
|
| Reed Shelly | .... | story editor (27 episodes, 1990-1991) |
| Lori Crawford | .... | script coordinator (26 episodes, 1990-1991) |
| Marsha Goodman | .... | voice director (26 episodes, 1990-1991) |
| Chris Hammond | .... | production assistant: DIC (26 episodes, 1990-1991) |
| Roger Mayer | .... | executive in charge of operations: TBS (26 episodes, 1990-1991) |
| Kent W. Meredith | .... | production coordinator (26 episodes, 1990-1991) |
| Noriko Norvell | .... | production assistant: DIC (26 episodes, 1990-1991) |
| William A. Ruiz | .... | assistant script coordinator (26 episodes, 1990-1991) |
| Bruce Shelly | .... | story editor (26 episodes, 1990-1991) |
| Minoru Terao | .... | production assistant: DIC (26 episodes, 1990-1991) |
| Penny Wylie | .... | assistant script coordinator (26 episodes, 1990-1991) |
| Kazuko Yamamoto | .... | production assistant: DIC (26 episodes, 1990-1991) |
|
| Tom Brocato | .... | publicist (unknown episodes) |
| Ted Turner | .... | series concept (unknown episodes) |
| |