Because you like Maxwell Q. Klinger in M*A*S*H
Usually the life of the party, Laszlo is now seriously planning the vampiric takeover of the New World. Or at least Staten Island. See them in What We Do In The Shadows.
No one has seen The Mandalorian without his helmet since he swore the creed. See them in The Mandalorian.
Matt Flamhaff is not too concerned about being part of the popular crowd. Too bad his best friend is. See them in 13 Going on 30 .
Ultron is security software turned evil mastermind. See them in Marvel Cinematic Universe.
Rose Tyler may have not done too well in school, but she's certainly holding her own in space. See them in Doctor Who.
Egon Spengler prefers collecting spores, molds, and fungus to interacting with people. See them in Ghostbusters.
Daphne Blake's unfailing enthusiasm keeps the team's morale up even as they're battling evil spirits and other ghouls. See them in Scooby-Doo.
Nandor is a relentless vampire who never admits he's wrong, loves glitter, and can't use a tablet. See them in What We Do In The Shadows.
Boomerang is equally skilled at tossing boomerangs and tossing back beers. See them in DC Extended Universe.
Xander Harris' life motto: laugh in the face of danger and then hide until it goes away. See them in Buffy the Vampire Slayer.