Behind the scenes of Harry Potter - Alan Rickman

A boy lost to the darkness, who turned away from the light.
The sallow skinned youth stood in the shadows to fight.
He lost his love to the darkness he was in
He's biggest regret, his greatest sin.
...It was then he made the switch, he was a changed man
Working against the wicked one and his evil plan
He made a promise to protect the child with her eyes
No one was to know, he would live in disguise.
A double agent, a secret spy, undercover
All because he had loved her
The darkness fell, the good had won
yet it wasn't over, it had just begun
His path was set he had settled had found his way
It was peaceful...