Radha Mitchell: Radha Mitchell. Actress: Silent Hill. Radha Mitchell (born 12 November 1973) is an Australian actress. She started her career acting in various Australian TV series and movies, and later became known for her appearance in Hollywood films. Mitchell, a native of Melbourne, began acting when she was still in high school and had her professional debut on the popular Australian soap, Neighbours (1985) in 1994. Two years later, she made...