Alison Docherty

After 's paradox machine was destroyed, undoing the Year That Never Was and reversing time back to 2008, Martha Jones sought out Professor Alison Docherty. She approached her in a park and gave her a bouquet of flowers. The flowers were in response to events in the alternate timeline, where her counterpart had betrayed Martha in return for information on the whereabouts of her son.

She enjoyed Countdown, though she preferred its original host over their immediate successors, Des and Des. She wasn't a fan of Bill Gates. (TV: Last of the Time Lords)

Behind the scenes
Though no scripted reference is made to her affiliated university, Docherty is shown wearing the scarf of Newnham College, Cambridge.