Bill Garner graduated from the University of Melbourne with a BA. His career as an actor and writer began in the Carlton theatre scene of the 1970s. He has written widely for stage, television and radio. Garner's first play Cake was produced by TheatreWorks in 1986.
Garner collaborated with Peter Corris to produce the mini-series, Pokerface, for television. This resulted in a further collaboration to produce a series of spy novels featuring their protagonist Ray Crawley. Garner's name also appears on the credits of the successful television shows Blue Heelers and Chances. He was also a writer on Gillies Republic.