Tom Gammill. Producer: It's Garry Shandling's Show.. Tom Gammill was born on 19 May 1957 in Darien, Connecticut, USA. He is a producer and writer, known for It's Garry Shandling's Show. (1986), Seinfeld (1989) and Die Simpsons (1989). He has been married to Sandy Gillis since 3 July 1988. They have two children.