Because you like Clementine Kruczynski in Eternal Sunshine of the Spotless Mind
Andy Bernard is a preppy Cornell grad who's very likely to break into an acapella performance. See them in The Office.
Count Olaf is a traveling actor, except he can't act and his homicidal tendencies make finding work pretty difficult. See them in Lemony Snicket's A Series of Unfortunate Events.
Kendall Roy is a wanna be ruthless businessman who comes across more like an anxious teenager. See them in Succession.
The ever-cheerful Tonks can change her appearance at will, but she can't seem to get rid of her clumsiness. See them in Harry Potter Series.
For Dana Scully, sometimes looking for extreme possibilities makes you blind to the probable explanation right in front of you. See them in The X-Files.
Nomi Marks is a brilliant hacker with an open-minded, accepting spirit. See them in Sense8.
Mike Hannigan is a lawyer-turned-pianist who loves to tap into his kooky side. See them in Friends.
Experiment 626 was designed for one thing: to destroy everything he touches. See them in Lilo & Stich.
Vanellope von Schweetz is princess of the Sugar Rush game who could care less about being royal. See them in Wreck it Ralph.
With those dearest to him dead and no one to trust, Max Rockatansky is a slightly hysterical man alone on the run in a post-apocalyptic world. See them in Mad Max: Fury Road.