SeriesThe Grim Adventures of Billy & Mandy S3E8: Which Came First?/Substitute Teacher
The Grim Adventures of Billy & Mandy S3, E8 - Which Came First?/Substitute Teacher

The Grim Adventures of Billy & Mandy S3, E8 - Which Came First?/Substitute Teacher

Airdate: Friday, July 30, 2004

In "Which Came First?", when a field trip across the desert is ruined by the school bus' flat tire, Billy, Mandy and Grim go into a cave infested by giant mutant chickens. In "Substitute ...

Cast: Grey Griffin, Greg Eagles, Richard Steven Horvitz, Dee Bradley Baker, Jane Carr, Debi Derryberry, Paul Eiding, Martin Jarvis, Rachael MacFarlane, Vanessa Marshall, Lara Jill Miller, Renee Raudman

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