In a poignant statement, Kelly Paniagua, McMahon’s wife, shared that he "loved life" and was deeply committed to bringing joy to others. McMahon became a household name with the enchanting series "Charmed" before solidifying his status in Hollywood through the medical drama "Nip/Tuck," where he portrayed the charismatic plastic surgeon Dr. Christian Troy. This role earned him critical acclaim and a Golden Globe nomination over the series’ six-season run from 2003 to 2010.

Dylan Walsh, his co-star in "Nip/Tuck," expressed his shock and sorrow, stating, “We rode this wave together and I loved him,” along with heartfelt memories of their shared experiences on set.

Known for his work as Doctor Doom in the "Fantastic Four" films and his recent role in "FBI: Most Wanted," McMahon's talent extended across a variety of genres. Dick Wolf, the producer of "FBI: Most Wanted," called the news of McMahon's passing "shocking."

The actor came from a prominent Australian family, being the son of a former Prime Minister, and played the role of a prime minister in one of his last projects, Netflix's "The Residence." McMahon's personal life included three marriages, notably to Australian singer-actress Dannii Minogue, which connected him to another celebrated figure in the industry.

McMahon leaves behind a legacy of cherished performances and fond memories, as fans and colleagues alike reflect on a life well-lived.