Because you like Optimus Prime in Transformers

Cisco Ramon is a proud, enthusiastic member of a superhero support team. See them in DC Extended Universe.

Selfishly taking her father’s place to fight in the Imperial Army, Hua Mulan risks treason if they find out she isn’t who she says she is. See them in Mulan.

Quicksilver is a cocky speedster who could run around the world in the time it's taking you to read this. See them in Marvel Cinematic Universe.

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

Buttercup is a farm girl turned princess who'd do anything to have her old life back. See them in The Princess Bride.

Severus Snape is a misanthropic potions teacher with a vindictive streak. See them in Harry Potter Series.

Despite the war-torn world around him, Mal Reynolds still holds onto the shred of hope that life can be more than just living another day. See them in Firefly.

Macbeth was probably named "Most Likely to Kill His Rivals" in his senior yearbook. See them in Macbeth.

Tracy Turnblad's got rhythm, and she's determined to share her dance moves with the world. See them in Hairspray.

He's a get rich or die tryin' kind of raccoon. See them in Marvel Cinematic Universe.

Just call Jeff Lebowski The Dude. Or His Dudeness, Duder, or El Duderino if you're not into that whole brevity thing. See them in The Big Lebowski.