Dervla Kirwan

Siobhan Dervla Kirwan (24 October 1971) is an Irish television and stage actress famous for roles in British television shows which included Ballykissangel and Goodnight Sweetheart among others. She also appeared in the Doctor Who Christmas special episode, "The Next Doctor" and provided the voiceovers for the well-known "This is not just food" television advertising campaign for UK retailer Marks & Spencer.