On Earth, he adopted the name Daniel Joyce and lived in Berkeley near San Francisco, where he married his wife, Anne. He became a professor and taught at Berkeley University. Sometime in the 1980s, Joyce assisted the Doctor with a danger related to the Advanced Research Project that Joyce was working for. Joyce later hired Larna as his assistant on the Project.
After the millennium he gave Professor Wagg a new beryllium chip to make up for the one that was stolen from him. In 2002, Joyce assisted the Doctor (whom he called "son") in defeating Griffin and in closing a dimensional scar. Joyce told the Doctor that he had begun experimenting with his biodata at this time, but refused to tell him why. (PROSE: Unnatural History)
Behind the scenes Edit
- It was commonly speculated by fans that Joyce was a later incarnation of Professor Chronotis from Shada, the existence of which almost certainly inspired the character. But this was later denied by writer Jonathan Blum. 
- Joyce was to feature in a Doctor Who novel by Kate Orman. The novel was never published.