Because you like Sheldon J. Plankton in SpongeBob SquarePants

Wheatley's got an endless supply of bad ideas that he wants to share. See them in Portal Series.

Amy Farrah Fowler deserves sainthood for putting up with Sheldon Cooper. See them in The Big Bang Theory.

Jack Skellington is a nightmare-man with a soft heart and smooth voice. See them in The Nightmare Before Christmas.

Working as a captain in the American Expeditionary Forces and a spy for British Intelligence, Steve Trevor wants to end World War I once and for all. See them in DC Extended Universe.

Lucius Malfoy is a judgmental social climber who has a bigoted superiority complex. See them in Harry Potter Series.

Mr. Fox will never truly be happy without a dead chicken between his chompers. See them in Fantastic Mr. Fox.

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

Cyclops shoots lasers out of his eyes, destroying anything in his line of sight. See them in X-Men Series.

Ahape-shifting dog, Jake is the last man's best friend. See them in Adventure Time.

Just because he rules Hades, doesn't mean he can't be fun! See them in Hercules.

Linda Belcher doesn't prescribe to what society deems as "normal." She narrates her life through song, much to the alarm of everyone nearby. See them in Bob's Burgers.

Howard Wolowitz is an engineer whose serious mommy issues somehow haven't dimmed his confidence. See them in The Big Bang Theory.