Because you like Ford Prefect in The Hitchhiker's Guide to the Galaxy

GLaDOS will supply the food when you get together: a delicious cake. Of course, it could just be a trap so she can kill you. It’s hard to say. See them in Portal Series.

Born and raised in the darkness, Bane is determined to have the city totally under his control so that he can demolish it. See them in DC Extended Universe.

Mabel Pines loves sparkles, animals, friendship, and fun. See them in Gravity Falls.

Kesuke Miyagi is a karate expert who thinks the best way a scrawny high schooler can learn how to defend himself is by washing every surface in sight. See them in The Karate Kid.

Deadpool thinks life is an endless series of train wrecks with only brief commercial-like breaks of happiness. See them in Deadpool.

An off-beat dork, John Egbert is funny, inventive, and endlessly optimistic. See them in Homestuck.

Marshall Eriksen is a lawyer in love who is enjoying life. See them in How I Met Your Mother.

Woody is a selfless leader of Andy's toys who likes change less than a snake in his boots. See them in Toy Story.

Samwell Tarly is a scholar, not a fighter. But that's not good for an aspiring member of the Night's Watch. See them in Game of Thrones.

Blaine Anderson is a put-together prep school boy with the voice of an angel. See them in Glee.

Sabriel is smart enough to understand the dangers that await her and brave enough to face them anyway. See them in Abhorsen Series.

Warm and caring, Kitty Forman acts like a mom towards all of her kids' friends. See them in That '70s Show.