4 Season
220 Episode
Dexter's Laboratory - Season 2 Episode 10 The Koos is Loose
Dee Dee's imaginary friend comes to life and annoys Dexter. Dexter ends up wishing him away, then he realizes he made a terrible mistake.
- Year: 2003
- Country: United States of America
- Genre: Animation, Comedy, Sci-Fi & Fantasy
- Studio: Cartoon Network
- Keyword: villain, house, robot, scientist, family, boy genius, brother sister
- Director: Genndy Tartakovsky
- Cast: Candi Milo, Kat Cressida, Jeff Bennett, Kath Soucie, Eddie Deezen