Because you like Tintin in The Adventures of Tintin
Driven and straightforward with high-technology parts, EVE was sent to Earth to see if it is habitable. See them in WALL-E.
Kelly Kapoor's interests are office gossip, pink (the color), Pink (the singer), snow cones, the temp Ryan, and "basically, anything that is awesome." See them in The Office.
Rick Dalton is an aging actor with insecurity issues. See them in Once Upon a Time in Hollywood.
Ezra Fitz is a young English teacher hounded by his own relationship mistakes. See them in Pretty Little Liars.
Yuri is living in the afterlife, which takes the form of a high school where no one dies. But if you follow the school's rules and live a "normal" life you vanish. See them in Angel Beats!.
When the safety of Hyrule is at stake, Princess Zelda does not hesitate to sacrifice herself for the good of the land. See them in The Legend of Zelda.
A bloodsucker, Carlisle Cullen is actually more likely to give you a blood infusion. See them in Twilight.
With a dangerous medical condition, Ignoring the rules makes him feel like he’s in control. See them in Five Feet Apart.
Crono may not talk, but this time-traveling hero's heart speaks volumes. See them in Chrono Trigger.
A compassionate medical student, Martha Jones has found a Doctor she can really look up to. See them in Doctor Who.
The vampire that killed Zero Kiryu's family also infected him, and he starts to crave blood, much to his horror. See them in Vampire Knight.
Yes, she's an "older" woman, but that just makes Mrs. Robinson sexier and more seductive. See them in The Graduate.