Thompson was born in London on 15 April 1959. Her mother is Scottish actress Phyllida Law, while her English father, Eric Thompson, was an actor best known as the writer of the popular children's television series … See more

Thompson had her first professional role in 1982, touring in a stage version of Not the Nine O'Clock News. She then turned to television, where much of her early work came with her Footlights co-stars Hugh Laurie and … See more