Let's see here...
Team Rocket (Pokemon)
Planet Express (Futurama)
Power Rangers (Mighty Morphin' Power Rangers)
The Avengers
Justice League
The Empire (Star Wars)
Charlie's Angels
Returners (Final Fantasy VI)
UNIT (Doctor Who)
League of Extraordinary Gentlemen
Dumbledore's Army (Harry Potter)
Aes Sedai (Wheel of Time)
Sacred Heart Hospital (Scrubs)
Koopa Troop (Super Mario Bros.)
That should be enough.