Celebrated actor was nominated for multiple Olivier awards in her theatrical roles and best known for Drop the Dead Donkey and The Windsors on TV The actor Haydn Gwynne has died of cancer at the age of 66. In a statement on Friday, her agent said that Gwynne had died in hospital "surrounded by her beloved sons, close family and friends. We would like to thank the staff and teams at the Royal Marsden and Brompton hosp…