Julian McMahon 's cause of death has been revealed. According to a Cremation Approval Summary Report from the Pinellas County Medical Examiner's Office in Florida obtained by PEOPLE, the Australian actor, best known for roles on Nip/Tuck and Charmed, died from lung metastasis as a result of head and neck metastatic cancer.

Julian McMahon, an Australia-born actor who performed in the “Fantastic Four” series of films and appeared in popular TV shows such as “Charmed,” “Nip/Tuck” and “Profiler,” has died.

He played a half-human, half-demon in the WB supernatural series “Charmed” and a playboy plastic surgeon in the FX series “Nip/Tuck.”