Because you like Greg Lestrade in Sherlock

Juliet Starling is a cheerleader by day, gleefully unhinged zombie killer by night. See them in Lollipop Chainsaw.

The only defense Earth has against alien invaders are giant robots in the hands of pilots like Kaworu. See them in Neon Genesis Evangelion.

For somebody who won't answer questions, the enigmatic C.C. sure asks a lot of them. See them in Code Geass.