Because you like Donna Noble in Doctor Who

A natural leader, Clarke Griffin dispenses both justice and mercy, and she does it all while being selflessly humble. See them in The 100.

A daring conman, Flynn Rider is so charismatic that you might not mind when he steals from you. See them in Tangled.

There's no obstacle too great for this charismatic treasure-hunter. See them in Uncharted.

Bo Dennis once dreamed of being prom queen, but then she found out that she's part of some ageless secret race that feeds on humans. See them in Lost Girl.

The Kid doesn't talk. He just acts with determination. See them in Bastion.

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

Ted Logan wants to party on, but if doesn't get an A+ on his history presentation, he'll flunk out and be sent to a military school in Alaska. See them in Bill & Ted's Excellent Adventure.

Smart and sensitive Sam Winchester tried to escape the family business, but ghosts have a way of haunting you. See them in Supernatural.

Although Penny's friends have genius-level IQs, they regularly come to her for advice and insight. See them in The Big Bang Theory.

R is sweet for a zombie. See them in Warm Bodies.

Kyle Broflovski is an motional fourth-grader who plays Guitar Hero, speaks Pig Latin, and fights with his "Fat Ass" friend Cartman. See them in South Park.

Meticulous Arthur is always prepared, but he may not be ready to be the point man in the criminal world of dream sharing. See them in Inception.