Ulysses

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

Biography
"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)

Appearance
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)

Behind the scenes

 * The character of Daniel Joyce was based on the character "John Smith" in Robert deLaurentis' 1994 Eighth Doctor movie script The Time of My Life. Smith was the Doctor's father, a renegade Time Lord who taught at Berkeley College. DeLaurentis was thanked in Unnatural History.
 * In The Gallifrey Chronicles, the character Ulysses, who originated as the Doctor's father in Philip Segal's proposed late 1990s revival of Doctor Who, last appeared in the company of Larna, Daniel Joyce's assistant. In real life, author James Joyce wrote a novel called . Daniel Joyce and the Doctor imply his name is relatively new. In The Infinity Doctors, the Doctor remembers his father worked at Berkley and that his name was not Ulysses. The Boy in Unnatural History later mentions versions of the Doctor's past where he and his father had their names removed from time and where his father erased himself from Time Lord files. In Parkin's unpublished novel Enemy of the Daleks, the Doctor was going to investigate his father's legacy left behind at Berkley during a Dalek invasion.
 * Joyce appears to share Faction Paradox's cavalier attitude toward the Web of Time. Elsewhere in Unnatural History, Joyce's mention of "dealings with [Time Lords] in the past" echoes the Book of Lies' description of Rassilon's deal with Faction Paradox to fold the Doctor's timeline back upon itself. Joyce's comments also imply that he is not a Time Lord, but Jon Blum noted that, if the title of Time Lord could be given, it could also be taken away.
 * Joyce was to feature, under another pseudonym, in the planned Eighth Doctor novel The Why Knot, but it was never published.