Because you like Montgomery Scott in Star Trek

Poison Ivy is a seductive, venomous botanist laments the fact that there are so many people to kill, yet so little time. See them in DC Extended Universe.

Emma Woodhouse knows what's best for everyone else. Just don't try to tell her what to do. See them in Emma.

Knuckles the Echidna is a 16-year-old red echidna (aka a spiny anteater) and guardian of the ancient Master Emerald. See them in Sonic the Hedgehog.

Bookish and socially anxious, Ruby Roundhouse is a teenager turned action heroine. See them in Jumanji.

Elaine Benes is a tough New Yorker who can hang with the guys, and date the ones who are "sponge-worthy." See them in Seinfeld.

The only thing standing between Rocky Balboa and glory is the person facing him in the boxing ring. See them in Rocky Series.

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.

Firo Prochainezo is swept up in a world of mysterious women, alchemists, and rumors of a wine that makes it drinkers immortal. See them in Baccano!.

Jack Bauer is a terrorist fighter who is scared of nothing and no one. The clock is ticking! See them in 24.

They say they saved Adam Jensen by turning him into a cyborg, but he's not sure saved is the right word. See them in Deus Ex Series.

Hawkeye is most comfortable perched above the action, keeping an eye on everything and using a well-timed arrow to save the day. See them in Marvel Cinematic Universe.

Sheldon Cooper is brilliant in every way except, well, interacting with any human being. See them in The Big Bang Theory.