Ambassador of NZ Gynaecological Cancer Foundation. From Mondays to Wednesdays Williams presents news bulletins on Television New Zealand's Breakfast and Good Morning shows, followed by the half-hour One News at Midday. He is also the co-host of the One News 6pm weekend bulletin, and the usual substitute for TV One's weekday 6pm bulletin.
Peter married Cecile van Dyk in 1976 and the couple had three children. Unfortunately Cecile died of ovarian cancer in November 1996 at the age of 43 and he is all too aware of the need to educate New Zealand women about the early symptoms.