Because you like Murph in Interstellar

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

Leslie Knope can accomplish anything, literally anything, with a little grit and help from her office. See them in Parks and Recreation.

Konata Izumi has a live-now, worry-later view of the world. See them in Lucky Star.

Though seemingly caring and calm, this motel owner has a mysterious streak of intensity. See them in Psycho.

He tells you everything you need to know: "I. Am. Groot." See them in Marvel Cinematic Universe.

When their organization was infiltrated by evil HYDRA, who was the one guy Captain America trusted? A former soldier with kickass wings named Sam Wilson. See them in Marvel Cinematic Universe.

Some say to survive in Underland you need to be as mad as a hatter–which, luckily, he is. See them in Alice in Wonderland.

Peppy and optimistic, Joy is totally lost when it comes to dealing with Sadness. See them in Inside Out.

Arguably the world's worst boss, Michael Scott is desperate for love, praise and a suggestion for an improv scene. See them in The Office.

Good fashion? Check. Snarky quips? Check. Supernatural evil-fighting powers? Also check. See them in Buffy the Vampire Slayer.

An opportunistic fugitive-turned-bounty-hunter, Faye Valentine uses both grit and her good looks to get ahead. See them in Cowboy Bebop.

Eren Jaeger will erase the Titans from this world until not a single one remains. See them in Attack on Titan.