Because you like Leonard "Bones" McCoy in Star Trek

The quiet, intense Daryl Dixon lets his crossbow do the talking. See them in The Walking Dead.

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

A fight every now and then makes Dante's life a little more interesting. See them in Devil May Cry.

Steven Universe is an excitable youth who likes junk food and trying to save the world. See them in Steven Universe.

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

Intelligent and confident, Maeve Wiley grew up alone and has no problem hitting you in the crotch if you disrespect her. See them in Sex Education.

With the loyalty and pluckiness of a puppy, Nana Komatsu is a hopeless romantic. See them in Nana.

When Rin Matsuoka is not swimming, he mostly spends his time brooding or listening to angry Dubstep. See them in Free! Iwatobi Swim Club.

A self-professed psychopath, James kills small animals for fun. After getting bored of that, he is ready for an ambitious murder. See them in The End of the F World.

Herion is Mark Renton's favorite drug. He sniffs it, smokes it, swallows it, sticks it up his arse, and injects it into his veins. See them in Trainspotting.

Effy Stonem is cool and collected with a wry smile on her face and a cigarette between her lips. See them in Skins.