Washington DC, July 12 -- More than a week after actor Julian McMahon passed away, the official cause of his death has now been confirmed.

McMahon died on July 2 in Clearwater, Florida. He was 56 years old.

His family had previously shared that he had been privately fighting cancer. Now, according to a report from the Pinellas County Medical Examiner's Office, his death was caused by lung metastasis due to head and neck metastatic cancer, as reported by The Hollywood Reporter.

Julian McMahon was a well-known Australian actor who starred in several popular TV shows and movies. He was best known for his roles in Charmed, Nip/Tuck, and the Fantastic Four films. This year, he also appeared in The Residence and The Surfer.

His wife, Kelly ...