Because you like Cookie Monster in Sesame Street

A grumpy tourist trap owner, Grunkle Stan has a few deep secrets. See them in Gravity Falls.

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

Randy Marsh is a geologist and Nobel Prize winner who is into binge drinking, starting riots, the Food Network, and P.F. Changs. See them in South Park.

K-2SO is a blunt and sarcastic reprogrammed Imperial droid who is always up for an adventure. See them in Rogue One.

One of the best in the magical world, Mad-Eye has the battle scars to prove his dedication to such a dangerous job. See them in Harry Potter Series.

Frank Reynolds is too gross even for the prostitutes he hires. See them in It's Always Sunny in Philadelphia .

Winn Schott is just your friendly neighborhood superhero support system. See them in Supergirl.

Hank McCoy is a quintessential nerdy scientist but with a few rather unconventional physical attributes. See them in X-Men Series.

Thanks to the contributions of this 14-year-old, the world is only occasionally destroyed by his grandfather. See them in Rick and Morty.

There's erratic, and then there's Senor Chang. See them in Community.

Scar is sneaky, snarky, and always striving for more power. See them in The Lion King.

No one has seen The Mandalorian without his helmet since he swore the creed. See them in The Mandalorian.