Because you like Ronald "Mac" McDonald in It's Always Sunny in Philadelphia

Christian is a romantic who for some reason won't stop singing everything he feels. See them in Moulin Rouge.

Whether it's a companion he’s failed or lingering guilt from the war, the Doctor can never truly let go of his past lives. See them in Doctor Who.

Jackie Burkhart is a privileged princess with a healthy dose of self-confidence. See them in That '70s Show.

Jughead Jones loves burgers, his friends, and philosophizing with his unique brand of wisdom. See them in Archie Comics.

Sometimes being a supportive girlfriend like Ophelia doesn't work out too well. See them in Hamlet.

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

Pure charm, flirty and fashionable, Lando Calrissian will make sure to get the job done when necessary. See them in Star Wars Series.

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

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

A blood-thirsty warrior on the battlefield, Ragnar Lothbrok is a dedicated family-man at home. See them in Vikings.

Call her. Beep her. If anyone's in trouble, Kim Possible is there. See them in Kim Possible.

Khan Noonien Singh is super strong, super smart, and out for revenge. He always seems to be two steps ahead of his enemies. See them in Star Trek Into Darkness.