Because you like Kesuke Miyagi in The Karate Kid
Peter Venkman's "research" projects are designed to get undergraduate students to sleep with him. Though it turns out he can bust ghosts. See them in Ghostbusters.
A no-nonsense pro, Agent K has dedicated his whole life to his job. See them in Men in Black.
James Gordon happens to be the one guy in Gotham City with proper morals who doesn't also run around in a cape. See them in DC Extended Universe.
Baloo is a fun-lovin' bear who just needs the bare necessities of life See them in The Jungle Book.
N'Jadaka is a righteous man with a violent agenda. See them in Marvel Cinematic Universe.
Ultron is security software turned evil mastermind. See them in Marvel Cinematic Universe.
Troy Bolton is a triple threat: singing, dancing, and basketball. See them in High School Musical.
Cyclops shoots lasers out of his eyes, destroying anything in his line of sight. See them in X-Men Series.
Anger is a cantankerous hothead whose job is to get others riled up. See them in Inside Out.
Charlie Bucket may be down-on-his-luck, but his spirits are always sky high. See them in Charlie and the Chocolate Factory.