Because you like Marshall Eriksen in How I Met Your Mother

A Hollywood starlet with a vindictive streak, Madison Montgomery is one witch that you shouldn't cross. See them in American Horror Story.

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

Nicky Nichols just wants to settle down with a nice girl, but being in prison is making that a little difficult. See them in Orange Is The New Black.

Paulie Bleeker is shy, sweet, and super into orange tic-tacs. See them in Juno.

Just because he rules Hades, doesn't mean he can't be fun! See them in Hercules.

Jasper Jordan is trying his best to make it through the night. See them in The 100.

Elena Gilbert is the quintessential girl-next-door who gets involved with the new "boy" at school. See them in The Vampire Diaries.

Quinn Fabray can become a monster when there is something she wants. See them in Glee.

Talking to a stranger on a train is the best decision Jesse Wallace ever made. See them in Before Sunrise.

A confident celebrity, Allison Hargreeves wasn't quite careful enough about what she wished for. See them in The Umbrella Academy.

Rose Tyler may have not done too well in school, but she's certainly holding her own in space. See them in Doctor Who.

Butters Stotch is a kind-hearted student who likes ladybugs, Charlie's Angels, art class, baby-back ribs, and Little Bunny Foo Foo. See them in South Park.