From Wikipedia, the free encyclopedia. Robert Ian Sitch (born 17 March 1962), is an Australian director, producer, screenwriter, actor and comedian.Sitch is currently a member of the Working Dog production company which produced the television shows Frontline, A River Somewhere, The Panel, Thank God You're Here and feature films The Castle and The Dish. Sitch co-wrote and directed both of these movies. Description above from the Wikipedia article Robert Ian Sitch, licensed under CC-BY-SA, full list of contributors on Wikipedia.