Allison Moore is an American Voice Actress. She has provided a few additional voices, but she is most famous for her voice as Dee Dee in the Cartoon Network series Dexter's Laboratory. She had quit after Season 1 of the show and came back in Season 3, then quit before Season 4. She is currently retired. Dexters Laboratory (Dexters Lab for short) is an American animated series which was created by Genndy Tartakovsky and first produced by Hanna-Barbera for Cartoon Network. ... Cartoon Network is an American cable television network created by Turner Broadcasting which primarily shows animated programming. ... Dexters Laboratory (Dexters Lab for short) is an American animated television series created by Genndy Tartakovsky. ...