Because you like Maria von Trapp in The Sound of Music
A few millennia in the mortal realm have caused DEATH to be quite enamored of life. See them in Discworld.
Castiel might be an immortal angel, but the human world is still more than a little confusing. See them in Supernatural.
Leonidas is not the kind of king who merely gives orders; rather, he's out on the battlefield fighting alongside his men. See them in 300.
Reclusive, quiet, and seemingly emotionless, Lain Iwakura feels like an outsider in her hyper-connected world. See them in Serial Experiments Lain.
Smart and sensitive Sam Winchester tried to escape the family business, but ghosts have a way of haunting you. See them in Supernatural.
Academics weren't his strong suit. Luckily, Jesse Pinkman's street smarts are a cut above the rest. See them in Breaking Bad.
A vain and arrogant womanizer, Roy Mustang has hidden depths. See them in Fullmetal Alchemist.
Don't mess with Mickey Milkovich unless you want to see the wrong side of one of his many guns. See them in Shameless.
Char is always thinking two or three steps ahead of the enemy. See them in Mobile Suit Gundam Series.
Christian Grey is just as controlling in the bedroom as the boardroom. See them in Fifty Shades of Grey.
Just a hint of human emotion lurks under the enigmatic exterior of Rei Ayanami. See them in Neon Genesis Evangelion.