Because you like David Rossi in Criminal Minds

Frederick Frankenstein is an eccentric (O.K., maybe a little insane) professor who is excited to be delving into his family's past. See them in Young Frankenstein.

Breaking bones and hearts, Callie Torres has figured out how to put the bones back together. But the hearts? Not so much. See them in Grey's Anatomy.

R2-D2 has been in the galaxy saving business for decades. Not bad for somebody whose vocabulary is limited to "beep-boop." See them in Star Wars Series.

N'Jadaka is a righteous man with a violent agenda. See them in Marvel Cinematic Universe.

Whether it's a fire or a pit of lions, there's almost no predicament that Violet Baudelaire can't get her and her siblings out of. See them in Lemony Snicket's A Series of Unfortunate Events.

Milo Thatch is an enthusiastic researcher without cynicism. See them in Atlantis: The Lost Empire.

A working class janitor with a world-class mind, Will Hunting is cocky, brash, and combative about his future. See them in Good Will Hunting.

Donna Pinciotti is strong, independent, and empathetic. No one messes with her. See them in That '70s Show.

His name is Inigo Montoya and whoever killed his father should be prepared to die. See them in The Princess Bride.

Clarice Starling is patiently working with one serial killer to stop another. See them in The Silence of the Lambs.