His film credits include: They Were Not Divided, Beat the Devil, Wings of the Morning, The Rainbow Jacket, The Womans Angle, Her Pannelled Door, The Camp on Blood Island, Dr. Terror's House of Horrors, Thunderball, Khartoum, The Magic Christian and Digby, the Biggest Dog in the World.
Television appearances include: Danger Man, The Saint, The Avengers, The Rat Catchers, Weavers Green, Man in a Suitcase, Doomwatch, The Regiment, Colditz, Upstairs, Downstairs, Survivors, The Duchess of Duke Street and Doctor Who (in the serial Meglos).
Both 'Wings of the Morning' and 'The Rainbow Jacket' were set in his beloved racing world, the former being set on Epsom Downs.'Wings of the Morning, starring Henry Fonda , was Britain's first technicolour movie. Edward Underdown was also a gentleman jockey and rode with great aplomb both on the flat and over sticks [ see references to his riding career in John Hislop's books.