Because you like Robert Chase in House M.D.

Michael Kelso gets by on his good looks and his openhearted nature. See them in That '70s Show.

Although life in a post-apocalyptic world is far from easy, Julie Grigio maintains her sense of humor. See them in Warm Bodies.

Jo Wilson is an accomplished doctor who's getting over her past. See them in Grey's Anatomy.

Michaelangelo is an above-ground crime-fighter by night, and a pizza-eating, sewer-dwelling mutant ninja turtle by day. See them in Teenage Mutant Ninja Turtles.

April Kepner is an excellent surgeon, but outside of the operating room, she's more anxious than most. See them in Grey's Anatomy.

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

Peter Pevensie shows as much courage as a child king as he did under The Blitz of London. See them in The Chronicles of Narnia.

Henry Mills is an idealistic young boy with the heart of the truest believer. See them in Once Upon a Time.

A consummate schemer with a knack for solving mysteries, Shawn Spencer has trouble taking anything seriously. See them in Psych.

A no-nonsense pro, Agent K has dedicated his whole life to his job. See them in Men in Black.

Hank McCoy is a quintessential nerdy scientist but with a few rather unconventional physical attributes. See them in X-Men Series.