, would be daunting for anyone, and Academy Award-nominee Imelda Staunton is no exception. The veteran actor, best known for Harry Potter and the Order of the Phoenix, Vera Drake, and the Downton Abbey films (opposite husband Jim Carter) tells Glamour that stepping into the late monarch's shoes for the fifth season of actually made her feel ill. “It was not easy for me,” she says on a recent Zoom during a break from filming of the Emmy-winning Netflix series.