Because you like Randy Marsh in South Park

Think you grew up fast? At 12, Mathilda is an aspiring assassin eager to avenge her family's murder. See them in Leon: The Professional.

All Catelyn Stark wants is to keep her family safe, but life in Westeros makes it nearly impossible. See them in Game of Thrones.

A life spent as "Number Two" is bound to give Diego Hargreeves an inferiority complex. See them in The Umbrella Academy.

Claire Temple is a dedicated nurse providing secret care to New York's vigilantes. See them in Marvel Cinematic Universe.

Ramona Flowers is a delivery girl who's been through her fair share of bad breakups. Super-bad breakups! See them in Scott Pilgrim vs. the World.

Causing mayhem practically since birth, rambunctious Fred Weasley plays pranks on his siblings and avoids school at all costs. See them in Harry Potter Series.

Gruff and efficient, Sam Fisher protects a nation that can never admit he exists. See them in Tom Clancy's Splinter Cell.

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

Equal parts funny and neurotic, Cory Matthews has a warm and generous spirit. See them in Boy Meets World.

Ahsoka Tano hopes to be a very powerful and knowledgeable Jedi one day. See them in The Clone Wars.

Remy Hadley is a closed book—a cynical, super-smart closed book. See them in House M.D..

Susanna Kaysen is an aspiring writer, despairing young woman who struggles with suicidal thoughts. See them in Girl, Interrupted.