Dervla Kirwan will be a guest on this afternoon's edition of the Paul O'Grady Show. On the show, she will be interviewed and is likely to talk her role as Miss Hartigan in this year's Doctor Who Christmas special. The show will start at 5pm on channel four and Dervla will be joined on today's show by Alan Carr and Peter Kay as Geraldine. You can view more information about the Paul O'Grady show here on the show's official site.