John O'May is an American-born Australian actor, best known for his stage performances. O'May grew up in Baltimore and went to Patapsco High School, where he later become a teacher. He came to Australia in 1972, where he replaced John Waters as Judas in Godspell. He created and performed in the revues Gershwin (with John Diedrich) in 1975 and The 20s and All That Jazz (with Diedrich and Caroline Gilmer) in 1977. He directed and starred in the musical Seven Little Australians in 1988. Screen credits include supporting roles in the films Starstruck and Rebel and the television opera The Divorce.