After completing George Miller's film Bushfire Moon (Miracle Down Under) in 1987, a chance meeting with British comedy legend Ray Cooney led to a three-year stint in the UK where he appeared in several of Ray's plays: It Runs in the Family, Wife Begins at Forty, the latter alongside the great Jimmy Edwards, as well as TV programs such as Casualty and Shelley.
During the 1990s, Grant appeared in a large number of Australian television dramas that included Janus, Correlli, G.P., Halifax f.p., Blue Heelers, SeaChange, Wildside, Good Guys Bad Guys, McLeod's Daughters, The River Kings, The Territorians, Stingers, Twisted Tales, Tales of the South Seas, Witch Hunt, and more.
This trend continued beyond 2000 with appearances in Blue Heelers and Stingers again, Marshall Law, Crashburn, Headland, Rain Shadow, The Librarians, The Elephant Princess, Sea Patrol, and Miss Fisher's Murder Mysteries.
Grant Piro became one of Australia's most respected theatre actors, with performances in Under Milk Wood, Whose Life Is It Anyway, Moby Dick, The Merry Widow, Laughter on the 23rd Floor, The Producers, The 39 Steps, Cat On A Hot Tin Roof, Dirty Rotten Scoundrels, The Drowsy Chaperone, Hairspray, His Girl Friday, and Hate.
Brian Dennison / Tony Tennant || TV series, 2 episodes He is married to Australian soprano and musical theatre icon Marina Prior.