Because you like Aku in Samurai Jack

Char is always thinking two or three steps ahead of the enemy. See them in Mobile Suit Gundam Series.

Oscar Jarjayes is a sword-swinging, fearless Commander of the Royal Guard who cross-dresses as a man. See them in Rose of Versailles.

For Celty Sturluson, it's rather upsetting to be the only headless girl in a city filled with full-bodied humans. See them in Durarara!!.

Yuri is living in the afterlife, which takes the form of a high school where no one dies. But if you follow the school's rules and live a "normal" life you vanish. See them in Angel Beats!.

Applejack's practicality complements her caring nature. She is the loyalest of friends and the most dependable of ponies. See them in My Little Pony.

If Anna Liebert could remember her past, maybe she would know who she is. See them in Monster (TV Show).

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

After several hundred years of shutting himself out from the rest of the world, Japan's not used to dealing with nations, See them in Axis Powers Hetalia.

Prideful and psychotic tendencies combine to make Dr. Eggman a dangerous and villain who will squash anyone in his path. See them in Sonic the Hedgehog.

Shana is a red-haired warrior with a black-and-white worldview. See them in Shakugan no Shana.

Spyro the Dragon loves getting into trouble around the Dragon Realms. See them in Spyro the Dragon.

Peter Venkman's "research" projects are designed to get undergraduate students to sleep with him. Though it turns out he can bust ghosts. See them in Ghostbusters.