Because you like Katara in Avatar: The Last Airbender

Beneath Arthur's brash demeanor lurks the heart of a compassionate future king destined to unite the five kingdoms. See them in Merlin.

Rory Williams is a caring companion whose specialty is looking after others. See them in Doctor Who.

Shy and nerdy, Gabriella Montez moved to Albuquerque and quickly became the toast of East High and a darling of the stage. See them in High School Musical.

A machete-wielding mass-murderer, Jason Voorhees is a terrifying blank slate. See them in Friday the 13th.

A bloodsucker, Carlisle Cullen is actually more likely to give you a blood infusion. See them in Twilight.

Effie Trinket is utterly enamored with all things fashion, make-up, and style. See them in The Hunger Games .

Topanga Lawrence has been a put-together intellectual since basically the moment she could talk. See them in Boy Meets World.

A Silurian lizard woman, Madame Vastra has a penchant for puzzles and interspecies romance. See them in Doctor Who.

Jade Jade Harley might not be the best at reading social cues, but her bravery and selflessness means she's a great friend to have. See them in Homestuck.

Sophia Burset will teach you how to navigate the prison world and maybe how to make cute shower shoes from commissary items too. See them in Orange Is The New Black.

This barber doesn't cut hair. Sweeney Todd sends his clients down a chute to be baked into his partner-in-crime's pies. See them in Sweeney Todd: The Demon Barber of Fleet Street.

Leonardo is spiritual, and devoted to more than just pizza. See them in Teenage Mutant Ninja Turtles.