Because you like Lois Wilkerson in Malcolm in the Middle

She's mostly doom and gloom, but you'd get nowhere without Sadness. See them in Inside Out.

Raphael is a short-fused hothead who loves a good fight and some tasty pizza. See them in Teenage Mutant Ninja Turtles.

Wise beyond his years, Ashitaka is a dutiful young prince who respects the balance of life. See them in Princess Mononoke.

John Bender's interests include marijuana, fighting, and breaking the rules. See them in The Breakfast Club.

For Vada Sultenfuss, it's hard to embrace growing up when you're obsessed with death. See them in My Girl.

An obsessive schoolgirl, Yuno has two sides to her personality, and both are equally unnerving. See them in The Future Diary.

When it comes to dancing and life, nobody puts Frances Houseman in the corner. See them in Dirty Dancing.

Stranded on Mars, Mark Watney is armed with quick wits, an electronic diary, disco music, and an undying resolve to make it back. See them in The Martian.

Liv Moore is a sarcastic high-achiever turned morally conflicted zombie. See them in iZombie.

Morticia Addams hates anything bright and cheery and loves all things ghoulish, ghastly, and violent. See them in The Addams Family.

Her interests include martial arts, interrogation, and hacking. Natasha Romanoff is the ultimate spy. See them in Marvel Cinematic Universe.

With great power comes great responsibility, but Peter Parker always seems to get the short end of that bargain. See them in Marvel Cinematic Universe.