Channel Nine broadcaster Peter Overton's father, John Herbert Overton AM, has died at the age of 88 following a peaceful death surrounded by family. John was a distinguished medical professional whose career spanned decades in anaesthesia and paediatric medicine, and his passing represents a significant loss to the Australian medical community. The obituary notes that his compassion and skill touched and saved many lives throughout his professional career.

John was an associate professor of anaesthesia at the University of Sydney and worked at Westmead Children's Hospital for decades, where he was revered by colleagues and patients alike. He was instrumental in establishing paramedics training in New South Wales and pioneering the development of intensive care paramedics in the state. In 2014, he received the Member of the Order of Australia award in recognition of his significant service to medicine. Peter Overton has previously spoken of his close relationship with his father, describing him as "a man of immense generosity of spirit" and recalling their nightly telephone conversations.