Is the uncredited James Bond in the gunbarrel sequence.
Doubled for Sean Connery as Bond in the gun-barrel sequences of the first three James Bond films, despite having been approximately six inches shorter than Connery. He also doubled Richard Kiel in "the Spy Who Loved Me" in the train-scene, where he went through the window with real plate glass. Kiel stands 7.2 feet tall and Bob was 5.9. Despite the difference it was accomplished purely with Simmons attitude and camera-angle.
Some sources erroneously credit Maurice Good as the 'fake limo drive' in the 1966 episode of The Saint: The Queen's Ransom, the first color episode. But it is Bob Simmons who plays the fake limo driver.