martinoncharlie.jpgCharlie Sheen is currently receiving at home rehabilitation treatment - and shooting an educational video during his Two and a Half Men break - and his father, legendary actor Martin Sheen, is finally speaking out about his son's problems with addiction.

Martin tells the UK's Sky News:

    "We pray for him. If he had cancer, how would you treat him? This disease of addiction is a form of cancer. You have to have an equal measure of concern and love and lift him up."

The 70-year-old West Wing star has three other children: Emilio, Ramon and Renee. What was Charlie's original birth name? See after the jump!