Diana Rigg to Guest Star on Doctor Who

BBC reports (via AICN) that Emma Peel herself, uber-spy star Dame Diana Rigg (also the greatest Bond Girl of all time), will appear alongside her daughter, Rachel Sterling (Tipping the Velvet) on an upcoming episode of Doctor Who penned by none other than Mark Gatiss! Gatiss is not only the author of the fantastic Lucifer Box spy send-ups The Vesuvius Club and The Devil in Amber (as well as the less successful third novel in the trilogy, Black Butterfly), but also an avowed fan of of both James Bond and Sixties spy television. (He's all over the extras on the DVD release of BBC's answer to The Avengers, Adam Adamant Lives!, for instance.) I have little doubt that he'll be able to resist working in a sly reference or two to Rigg's famed spy roles. (He even references Charles Helfenstein's excellent book The Making of On Her Majesty's Secret Service on an audio commentary for the latest season of Sherlock, the brilliant modern-day take on Sherlock Holmes that he co-created with current Doctor Who showrunner Steven Moffat.) Apparently the pair will play a mother and daughter on the show, too. (I was kind of hoping they'd play older and younger versions of the same character on a time travel show. Oh well.) Rigg's Avengers predecessor Honor Blackman memorably appeared in the epic 1986 Doctor Who serial "The Trial of a Time Lord."