- 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 — S6E14
Episode: Neutopia
Air Date: 2011-06-23
Runtime: 22 min
Overview
The crew members encounter a bizarre alien with the power to change their sexual characteristics.