Because you like Egon Spengler in Ghostbusters

Raj Koothrappali is an astrophysicist who sees stars when he feebly tries to chat up women. See them in The Big Bang Theory.

Charlie Bucket may be down-on-his-luck, but his spirits are always sky high. See them in Charlie and the Chocolate Factory.

Surly and sarcastic, Manny travels alone and prefers it that way. See them in Ice Age.

Milhouse Van Houten is happy to be second banana. See them in The Simpsons.

Greg Lestrade is gruff, loyal, and quietly competent. See them in Sherlock.

This barber doesn't cut hair. Sweeney Todd sends his clients down a chute to be baked into his partner-in-crime's pies. See them in Sweeney Todd: The Demon Barber of Fleet Street.

Brian Griffin is the most scholarly member of the family—when he's not drunk on martinis. See them in Family Guy.

Eugene H. Krabs is a greedy restaurant owner who won't let a dime out of the reach of his claws. See them in SpongeBob SquarePants.

Howard Wolowitz is an engineer whose serious mommy issues somehow haven't dimmed his confidence. See them in The Big Bang Theory.

Nick Carraway is the perfect observer: always there for the events, but never too involved. See them in The Great Gatsby.

Domino is phenomenally lucky‚ and, yes, that's a superpower. See them in Deadpool.

Tina Goldstein is better at getting the job done than following the rules. See them in Fantastic Beasts and Where To Find Them.