4 Season
220 Episode
Dexter's Laboratory - Season 1 Episode 7 Dexter's Rival (2003)
Mandark Astronomanov, a new student at Dexter's school, seems to be superior to Dexter academically. Mandark forces Dexter to shut down his lab so that Mandark's lab can gain more power. However, with the help of Dee Dee, Dexter manages to destroy Mandark's lab.
- Country : United States of America
- Genre : Animation, Comedy, Sci-Fi & Fantasy
- Studio : Cartoon Network
- Director : Genndy Tartakovsky
- Cast : Candi Milo, Kat Cressida, Jeff Bennett, Kath Soucie, Eddie Deezen
