Because you like Marshall Eriksen in How I Met Your Mother

Chuck Bartowski is a sweet, laid-back electronics store/top secret government employee. See them in Chuck.

Samantha Jones is a try-sexual who'll try anything once. See them in Sex and the City.

Olive Hoover is an irrepressible child beauty queen (or would-be queen) who doesn't play by your rules. See them in Little Miss Sunshine.

As a doctor-in-training, John Dorian should have his head in the game. But most of the time, it's in the clouds. See them in Scrubs.

Michael Scofield is no criminal, and he didn't get jailed by accident. See them in Prison Break.

Andy Dwyer might not be completely literate, but he makes up for it in spirit. See them in Parks and Recreation.

Christine Palmer is a great surgeon and an even better friend. See them in Marvel Cinematic Universe.

With her mastery of martial arts and her prodigious building skills, Wyldstyle projects an air of invincibility. But she's not bulletproof. See them in The Lego Movie.

A charming acapella performer, Jesse Swanson perfectly blends being nerdy with being cool. See them in Pitch Perfect.

Don't tell anyone Kate Austen was under arrest when the plane crashed. See them in Lost.

The Genie is the perfect buddy, granting every wish we might have and keeping life good-spirited. See them in Aladdin.

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 .