Katherine Lucy Bridget Burke is an English-Irish actress, comedian, playwright and theatre director. She won Best Actress at the 1997 Cannes Film Festival for her performance in the Gary Oldman film Nil by Mouth.
Burke's film debut was in Mai Zetterling's Scrubbers in 1983. In the 1990s, she became known for her regular appearances in the sketch shows French and Saunders, Harry Enfield's Television Programme and Harry Enfield and Chums, and for her recurring role as Magda in the BBC sitcom Absolutely Fabulous. Her role as Valerie in Nil by Mouth also earned her a BAFTA Award nomination for Best Actress. Her other film roles include Mary I in Elizabeth, Maggie in Dancing at Lughnasa, Marey in This Year's Love, Perry in Kevin & Perry Go Large, Angie in The Martins and Deirdre in Anita and Me. From 1999–2001, she starred as Linda La Hughes in the BBC sitcom Gimme Gimme Gimme, for which she received two of her five BAFTA TV Award nominations. Since 2001, she has concentrated more on her work as a director, although she did appear as Connie Sachs in the 2011 film Tinker Tailor Soldier Spy.