Because you like Lily Aldrin in How I Met Your Mother

Tina Belcher is on the cusp of puberty, and she has no shame when it comes to boys, butts, and brassieres. See them in Bob's Burgers.

Fox McCloud leads a team of pilots through the Lylat System in search of the evil genius Andross, the villain that killed his father. See them in Star Fox.

Headstrong and sarcastic, Max Mayfield is a force for awkward middle school boys to contend with. See them in Stranger Things.

China has five thousand years of history, and he's optimistic he'll win over the Allied Powers to the wisdom of his ways. See them in Axis Powers Hetalia.

When the Sorting Hat touched Draco Malfoy's head, it placed him in Slytherin, a house that has turned out more dark wizards than any other. See them in Harry Potter Series.

Both intelligent and empathetic, Remus Lupin is worn down by the weight of a secret. See them in Harry Potter Series.

Rukia Kuchiki is a cool and collected warrior who has trouble opening up to anyone. See them in Bleach.

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

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

A benevolent madman with a blue box, The Doctor is traveling through time and space to heal the wounds of the universe. See them in Doctor Who.

Misaki Nakahara is keeping tabs on her newest project: recluse Tatsuhiro Sato. See them in Welcome to the NHK.