Because you like Sandy Cohen in The O.C.

It's impossible to say whether Winifred Burkle is cuter than she is smart, or vice versa. See them in Angel.

Mark Sloan is the best plastic surgeon and biggest playboy the hospital's ever seen. See them in Grey's Anatomy.

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

Joe West is overprotective and secretive when his children are involved. See them in DC Extended Universe.

Joey Potter is a low-key girl next door in love with her best friend. See them in Dawson's Creek.

Derek Shepherd is a talented and passionate neurosurgeon. Some people call him McDreamy. See them in Grey's Anatomy.

Pengiuns, turtles, and all things scientific is where Sam's expertise lies. Girls are uncharted territory, but Sam is trying to branch out. See them in Atypical.

The party never really ends with Penny Lane, a rock-worshipping groupie who is refreshingly self-aware and free-spirited. See them in Almost Famous.

Xander Harris' life motto: laugh in the face of danger and then hide until it goes away. See them in Buffy the Vampire Slayer.

Arizona Robbins loves being a pediatric surgeon, and the cute orthopedic surgeon downstairs makes coming into work worth her while. See them in Grey's Anatomy.

Izzie Stevens is a model-turned-med student who can do it all, even if people underestimate her. See them in Grey's Anatomy.

Jeff Winger thinks he's too cool for school, which is a problem because he just enrolled in community college. See them in Community.