Because you like Nyota Uhura in Star Trek

Stoic, cynical, and brilliant, Solid Snake was genetically engineered to be the perfect soldier. See them in Metal Gear Series.

A premier member of the leather cat-suit club, Selene can chill you with a stony look, or ice you with her ninja moves. See them in Underworld.

Optimus Prime is a shapeshifting sentient robot leading a team of robots to stop evil from taking over. See them in Transformers.

Anna Karenina doesn't want to be a respectable woman any more. She thinks respect was invented to cover the empty place where love should be. See them in Anna Karenina.

Leone Montana is a fearless hitman with a surprisingly sensitive side. See them in Leon: The Professional.

The only constant in Night Vale is Cecil's hypnotic voice. See them in Welcome to Night Vale.

Jane Smith is a stone-cold killer, but you would never know it from looking at her. See them in Mr. & Mrs. Smith.

In his transformation from hardened convict to moral paragon, Jean Valjean is the kind of man we should all aspire to be. See them in Les Miserables.

Woody is a selfless leader of Andy's toys who likes change less than a snake in his boots. See them in Toy Story.

Philip J. Fry accidentally cryogenically froze himself for a millennium. See them in Futurama.