Patrick McGoohan may have reached international stardom as Danger Man and The Prisoner, but his first speaking role on the screen was in 1955, in The Dam Busters. He played the guard on the briefing room door, who turns Gibson’s dog away. Here is the clip on YouTube:
well he had to start somewhere
His first appearance on-camera in the film is a few minutes earlier – as the briefing begins, the camera moves out of the briefing room, the doors close, and McGoohan strides into shot to take up his post…