History's Greatest Villains
From The Infosphere, the Futurama Wiki
|History's Greatest Villains|
|First appearance||"Kif Gets Knocked Up a Notch" (4ACV01)|
Zapp Brannigan sent them afloat in outer space when he shot a hole in the hull, despite Attila the Hun's concerns.
- A similar incident occurred in the Star Trek: The Next Generation episodes "Elementary, Dear Data" and "Ship in a Bottle". They also included Professor Moriarty.