Because you like Joel Barish in Eternal Sunshine of the Spotless Mind
Helena is a mentally unstable, childish, and completely merciless. And most of all, she's an unstoppable killer. See them in Orphan Black.
Darcy Lewis is a razor-sharp scientist studying things that science can't explain. See them in Thor.
Raven Reyes may be a deliquent, but she's also the youngest zero-gravity mechanic who fixed a 130-year old escape pod to make it through the descent to Earth. See them in The 100.
It turns out Dracula's son Alucard has some pretty severe daddy issues. See them in Castlevania.
A cruel pirate, Captain Hook still fancies himself a gentleman. See them in Peter Pan.
A brilliant "extractor," Dom Cobb has spent the past few years running from the authorities and his inner demons. See them in Inception.
Rue Bennett has been overprescribed and under-supervised her entire life. See them in Euphoria.
For someone who swears she doesn't care for anyone, MJ Jones spends a lot of time observing her classmate Peter Parker. See them in Marvel Cinematic Universe.
She's a survivor of gunshots, of being buried alive, nand of paralysis. And now Beatrix Kiddo is going to make her abusers pay. See them in Kill Bill vol. 1.
Rory Williams is a caring companion whose specialty is looking after others. See them in Doctor Who.
Quinn Fabray can become a monster when there is something she wants. See them in Glee.
Klaus Hargreeves is funny, flirty, and high at any given moment, but he's also the most emotionally literate of his super-powered siblings. See them in The Umbrella Academy.