English actress DIANA COUPLAND has died after suffering heart problems. She was 74. The London-born comedienne passed away at Coventry's University Hospital, after failing to recover from heart surgery. Her surgeon says, "The operation was a success but because of Diana's longstanding illness, her condition continued to deteriorate." During her long career, Coupland starred in a string of TV shows, including BLESS THIS HOUSE, Eastenders, CASUALTY and Z CARS. Coupland dubbed Ursula Andress' singing voice in 1962 JAMES BOND movie DR NO.