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"Daniel Joyce" was a renegade Time Lord who became a professor on Earth.


"Joyce" told Sam Jones that, though he'd had dealings with Time Lords in the past, he was not one; he said he never understood Time Lord teachings about the sanctity of the Web of Time, instead preferred to be unbound by history or the big picture. However, he noted that his perspective had put him in trouble in the past, leading to the tattoo on his forearm. The Doctor once spent a week "cleaning up" after Joyce's visit to Youkali. Joyce also referenced Patience.

Sometime in the 1980s, he worked as a professor at the University of California in Berkeley, working for the Advanced Research Project. However, he was fired for building a small atomic bomb as a demonstration that any lunatic could build one. Twenty years later, he started working at Berkeley again as "Daniel Joyce", a physics professor from Cornell University in Ithaca, New York. The Eighth Doctor said the name Joyce "fit him".

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 Eighth 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.

Joyce was married to Anne; they had a daughter in her thirties. Larna was Joyce's assistant on the Project. (PROSE: Unnatural History)


On Earth, Joyce had a tattoo on his forearm that he had tried to remove. He had a short white beard and a Scottish accent. (PROSE: Unnatural History)


The Doctor knew his father was a professor at Berkeley, and that his name wasn't Ulysses. (PROSE: The Infinity Doctors) The boy (Unnatural History) mentioned a version of the Doctor's past where his father had their names erased from time. (PROSE: Unnatural History)

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