Because you like Butters Stotch in South Park

The only thing standing between Rocky Balboa and glory is the person facing him in the boxing ring. See them in Rocky Series.

Rose Tyler may have not done too well in school, but she's certainly holding her own in space. See them in Doctor Who.

Winn Schott is just your friendly neighborhood superhero support system. See them in Supergirl.

Cosmo Kramer is an eccentric schemer whom you might know better as the "Assman." See them in Seinfeld.

A brilliant intelligence officer, Eve Polastri seems more like Bridget Jones than James Bond. See them in Killing Eve.

Stefan Salvatore was the golden boy when he was alive. Can he keep it up as a vampire? See them in The Vampire Diaries.

Mario is a plumber who wears a ridiculous outfit, eats weird looking mushrooms, and fits himself inside your pipes so he can save a princess. See them in Super Mario Bros..

World domination and Superman's demise are next on Lex Luthor's to-do list. See them in DC Extended Universe.

Murph is inquisitive, compassionate, and stubborn, with a passion for science she shares with her dad. See them in Interstellar.

Winnie the Pooh is a chubby little cubby all stuffed with fluff. See them in Winnie the Pooh.

A plucky 13-year-old with a flair for the dramatic, Kiki is a witch in training. See them in Kiki's Delivery Service.

More of a sex symbol than a crime-stopper, the original Silk Spectre has now become the ultimate superhero stage mom. See them in Watchmen.