Harvey was an Australian. His mother died when he was young and he helped his father work the family farm as he grew up. In 1979, when he was 16, Harvey met the Tenth Doctor when parts of Skylab fell in the area. This was part of a Zalphon plot to take over the Earth.
A Zalphon possessed Harvey's father, but the Doctor used his sonic screwdriver to evict it from his body. Later, another Zalphon possessed Harvey but the Doctor freed him from it. The Doctor sent the Zalphon mothership, disguised as the Sydney Opera House, back into space with all the Zalphons on board. Harvey tells the stunned Wade Johnson, editor of the Sydney Morning Globe, that he will explain what happened for twenty thousand dollars. (PROSE: Bennelong Point)