Actor Julian McMahon, who was known for playing Dr. Doom in the early 2000s "Fantastic Four" movies and starring in fan favorite shows including “Nip/Tuck” and "Charmed," has died. He was 56. McMahon "died peacefully this week after a valiant effort to overcome cancer,

Julian McMahon, the actor best known for starring in 'Nip/Tuck' and portraying Doctor Doom in the 'Fantastic Four' films, has died at the age of 56.

McMahon was born in the 1960s, into the highest portions of the Australian upper crust: His father, Sir Billy McMahon, served as the country’s Prime Minister from 1971 to 1972, and his mother, Lady Sonia McMahon was a prominent (and infamously intimidating) socialite and philanthropist.