William John Fennell OAM (20 January 1920 – 9 September 1992) was an Australian radio, television (serials and mini-series), stage and film actor, comedian, producer, radio scriptwriter and writer who appeared in many Australian television series in a lengthy career spanning over 50 years, recognised by his slightly nasal, raspy voice, moustache and pork pie hat. As a comedian, his style was stated as a sad humour worth more than a belly-laugh and said to be contrasted with the blue comedy of contemporary performer Roy Rene.