Because you like Pamela Voorhees in Friday the 13th

The fearless bodyguard of Rick Flag, Katana will ruthlessly kill her enemies, trapping their souls in her sword. See them in DC Extended Universe.

Stella Grant is an organized, orderly optimist living with a dangerous disease. See them in Five Feet Apart.

Needles Kane says shut up and bleed. See them in Twisted Metal .

A jealous woman is dangerous. A jealous assassin woman like Elle Driver is even more so. See them in Kill Bill vol. 1.

Hank McCoy is a quintessential nerdy scientist but with a few rather unconventional physical attributes. See them in X-Men Series.

Nala is a strong lioness who's loyal to her friends. See them in The Lion King.

All Catelyn Stark wants is to keep her family safe, but life in Westeros makes it nearly impossible. See them in Game of Thrones.

Kara "Starbuck" Thrace will beat you in cards, drink you under the table, then fly circles around you in her fighter plane. See them in Battlestar Galactica.

Joey Potter is a low-key girl next door in love with her best friend. See them in Dawson's Creek.

Wanderer is a Soul, a parasite sent into a host to take over their body, extracting information from them and colonizing their species. See them in The Host.

Vanellope von Schweetz is princess of the Sugar Rush game who could care less about being royal. See them in Wreck it Ralph.

This barber doesn't cut hair. Sweeney Todd sends his clients down a chute to be baked into his partner-in-crime's pies. See them in Sweeney Todd: The Demon Barber of Fleet Street.