Because you like Alan Grant in Jurassic Park
Ultron is security software turned evil mastermind. See them in Marvel Cinematic Universe.
Sydney Bristow is a kick-ass double agent on a mission for revenge. See them in Alias.
Kilgrave is a domineering, abusive boyfriend. Then, add in the power of mind control. See them in Marvel Cinematic Universe.
With each reboot, Janet progresses more and becomes capable of human emotions. See them in The Good Place.
Emma Frost's superpower: transforming her body into an unbreakable diamond. See them in X-Men Series.
Marlin navigates through shark-infested waters, angry anglerfish, a jellyfish bloom and hungry whales to search for his son. See them in Finding Nemo.
Olive Hoover is an irrepressible child beauty queen (or would-be queen) who doesn't play by your rules. See them in Little Miss Sunshine.
Fox McCloud leads a team of pilots through the Lylat System in search of the evil genius Andross, the villain that killed his father. See them in Star Fox.
Once described as a "beautiful, tropical fish," Ann Perkins exudes warmth, and unlike most of her friends she also has common sense. See them in Parks and Recreation.
Aslan represents everything good and just, he's just not super reliable. See them in The Chronicles of Narnia.
Jenny Flint is a devoted wife and daring crime fighter, which is pretty unconventional for a Victorian maid. See them in Doctor Who.