- Billy West (Philip J. Fry / Professor Farnsworth / Zoidberg / Zapp Brannigan (voice))
- Katey Sagal (Leela (voice))
- John DiMaggio (Bender (voice))
- Tress MacNeille (Mom (voice))
- Maurice LaMarche (Morbo / Kif Kroker (voice))
- Lauren Tom (Amy Wong (voice))
- Phil LaMarr (Hermes Conrad (voice))
- David Herman (Scruffy (voice))
Futurama — S3E7
Episode: The Day the Earth Stood Stupid
Air Date: 2001-02-18
Runtime: 22 min
Overview
Earth is invaded by super-intelligent flying brains, who sap the Earth's populace of their intelligence. Leela is taken to Nibbler's home planet Eternia, where the Nibblonians explain that only one human is immune to the brains' powers - Fry.