Johnny Williams was born in 1960 in Victoria Australia and lives at West Heidelberg with his parents and four brothers and sisters where he is a student at Melbourne's Cathedral Catholic College. His first jobs were commercials for television, starting from the age of seven. By 1971, Johnny had done many voice-overs in TV commercials and had parts in two episodes of "Homicide" and six in "Division 4" for Crawford Productions.
In 1972, Johnny won the grand final of the Stamford Hotel's Talent quest. He appeared with Sir Michael Redgrave in "A Voyage Around My Father" in 1973. The same year, he starred in Tim Burstall's 4-part film, "Libido" (he starred in "The Child") with Jack Thompson and Bruce Barry. He was also a regular in the ABC series "A Taste for Blue Ribbons" where he played the part of Michael Byrne. In August 1973, Johnny won second place on "Showcase 73."