At the climax of their fight, Tara hits Gardiner over the head with her paintbox, causing actor Kenneth Cope's (or possibly his stunt double's) toupee to visibly slip. On regaining consciousness, his character's "hair" is flawless again.
Obvious stand-in for Steed as he walks from the Land Rover to the phone booth.
Shadow of boom microphone moves across wall when Burgess threatens Earle with cue-stick.
Steed and Burgess playing snooker at Burgess' home. Burgess missed his pot, hitting the blue ball, which is a foul. He walks to the scoreboard but doesn't mark up the five penalty points for Steed.