 | Simon Prebble | ... | The Computer (52 episodes, 1999-2002) |
 | Lionel G. Wilson | ... | Eustace Bagge / ... (33 episodes, 1999-2002) |
 | Billie Lou Watt | ... | Ma Bagge (31 episodes, 1999-2002) |
 | Arthur Anderson | ... | Eustace Bagge (19 episodes, 2002) |
 | Paul Schoeffler | ... | Katz / ... (6 episodes, 1999-2002) |
 | Marty Grabstein | ... | Courage, the Cowardly Dog (4 episodes, 1999-2000) |
 | Thea White | ... | Muriel Bagg (4 episodes, 1999-2000) |

| Peter Fernandez | ... | Additional Characters / ... (4 episodes, 1999-2000) |
 | Arnold Stang | ... | Additional Characters / ... (4 episodes, 1999-2002) |
 | Masayuki Nakata | ... | Katz / ... (4 episodes, 1999-2002) |
 | John Dilworth | ... | Additional Characters / ... (4 episodes, 2000-2002) |
 | Jim Cummings | ... | Cajun Fox / ... (3 episodes, 2000) |
 | Mary Testa | ... | Shirley the Medium (3 episodes, 2000) |
 | Kath Soucie | ... | Little Muriel (2 episodes, 2000) |
 | Dennis Predovic | ... | Various Roles (2 episodes, 1999-2000) |

| Fred Melamed | ... | Spirit of the Harvest Moon / ... (2 episodes, 2000-2001) |
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 | Tim Chi Ly | ... | Di Lung (the punk kid of Nowhere) (unknown episodes) |
 | Ashley Albert | ... | Storm princess (From "Stormy Weather" (unknown episodes) |
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| R. Theodore Brown | .... | storyboard revisionist (52 episodes, 1999-2002) |
| Sean Lattrell | .... | storyboard revisionist (52 episodes, 1999-2002) |
| Pilar Newton | .... | storyboard revisionist (52 episodes, 1999-2002) |
| David Wachtenheim | .... | storyboard revisionist / storyboard artist (52 episodes, 1999-2002) |
| Michael Wetterhahn | .... | storyboard revisionist (52 episodes, 1999-2002) |
| Bob Miller | .... | storyboard supervisor (51 episodes, 1999-2002) |
| Ethan Kanfer | .... | storyboard artist / storyboard revisionist (13 episodes, 2000-2002) |
| Jim Mitchell | .... | storyboard supervisor (2 episodes, 2002) |
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| Tony Eastman | .... | animator / walk cycles (52 episodes, 1999-2002) |
| John Paratore | .... | animator / character mouth charts (52 episodes, 1999-2002) |
| David Wachtenheim | .... | animator / walk cycles (52 episodes, 1999-2002) |
| Pilar Newton | .... | designer / storyboard revisionist (51 episodes, 1999-2002) |
| Jose Velasco | .... | designer (51 episodes, 1999-2002) |
| Jeff Brennan | .... | prop & character design / designer (25 episodes, 1999-2002) |
| Andrew Covalt | .... | color stylist / background supervisor (15 episodes, 1999-2002) |
| Andy Smith | .... | character designer / designer (12 episodes, 1999-2000) |
| Janet Benn | .... | animation checker / animator / ... (2 episodes, 2000) |
| Dai Dai | .... | color stylist (2 episodes, 2000) |
| Ray daSilva | .... | animator / walk cycles (2 episodes, 2000) |
| Margaret Frey | .... | color stylist (2 episodes, 2000) |
| Mark Su Jin Han | .... | color assistant (2 episodes, 2000) |
| Swatch Jang | .... | layout supervisor (2 episodes, 2000) |
| Vincent Lu | .... | background supervisor (2 episodes, 2000) |
| Fida Hamze Reuter | .... | color stylist (2 episodes, 2000) |
| Lee Stacy | .... | color stylist (2 episodes, 2000) |
| Martin Wittig | .... | animator / character mouth charts / ... (2 episodes, 2000) |
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