“View gallery Image Credit: Corbis via Getty Images Julian McMahon was born and raised in Australia before moving to the United States to become a TV and movie star, stealing fans’ hearts around the globe. Upon finding success with roles in Nip/Tuck, Charmed and FBI, Julian’s acting career soared, which likely made his parents proud.”, — write: hollywoodlife.com
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Image Credit: Corbis via Getty Images Julian McMahon was born and raised in Australia before moving to the United States to become a TV and movie star, stealing fans’ hearts around the globe. Upon finding success with roles in Nip/Tuck, Charmed and FBI, Julian’s acting career soared, which likely made his parents proud. Julian was the son of late former Australian Prime Minister, Sir William McMahon, and Sonia Rachel, Lady McMahon, both of whom died before Julian’s shocking death in 2025.
Below, learn about Julian’s early life and family.
Who Was Julian McMahon’s Father, Sir William McMahon? Julian’s father, Sir William, a.k.a Billy McMahon, was a politician and served as Australia’s 20th prime minister. The Sydney native served in the Liberal Party of Australia as its leader and previously worked in ministerial positions for 20 years. William held the longest continuous political service in Australian history.
Before becoming a politician, William served in the Australian Army. He earned the rank of captain, follow by major, and he served in World War II.
Julian’s father died in March 1988 in his sleep at the age of 80.
Who Was Julian McMahon’s Mother, Sonia McMahon? Sonia was a philanthropist and socialite, who is remembered for promoting charitable fundraisers and various organizations that supported the community. She was also on the board of the Sydney Children’s Hospital.
Before marrying William in 1965, Sonia worked as an occupational therapist. The couple had a 25-year age gap, and they stayed together through the end of William’s life.
Lady Sonia died at the age of 77 in April 2010 following a battle with cancer. She had been living with melanoma before she died, according to The Sydney Morning Herald. Melanoma is a form of skin cancer that grows quickly and can be fatal.
Like his mother, Julian also died of cancer, though it’s still unclear what type of cancer he had.
