Because you like Alex Russo in Wizards of Waverly Place

A vampire hunter, Integra Hellsing doesn't tolerate failure, least of all her own. See them in Hellsing.

Ezio Auditore Da Firenze is a little short-tempered, a lot fun-loving. See them in Assassin's Creed Series.

A responsible kid, Hugo Cabret is still capable of flights of fancy. See them in Hugo.

Nomi Marks is a brilliant hacker with an open-minded, accepting spirit. See them in Sense8.

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

After surviving a CIA mission that was supposed to kill him, ex-military man John Reese bets it all on a chance to redeem himself. See them in Person of Interest.

A resourceful ship systems engineer, Isaac Clarke does his best to batttle the infection spreading across space. See them in Dead Space.

It's hard to tell if Dean Winchester cares more about saving the world or his 1967 Chevy Impala. See them in Supernatural.

V is a violent anarchist with literally nothing left to lose. But, he might have a point. See them in V for Vendetta.

Percy Jackson is an ordinary student thrust into the world of myth come alive. See them in Percy Jackson & The Olympians: The Lightning Thief.

Edward Elric has a quick mind along with a quick temper. See them in Fullmetal Alchemist.

Just a hint of human emotion lurks under the enigmatic exterior of Rei Ayanami. See them in Neon Genesis Evangelion.