This was the debut on screen performance for James Tapp who played the cashier, and the last on screen performances by John Drake, the President, and Paul Vaughan-Teague, the scorer.
The first of two uncredited roles in this series by Ralph G. Morse who played one of the fencers, the other was in S9 E10, Mr. Know-All (1988).
The second of two appearances by Genevieve Allenbury, the first being in S4 E16, The Way to Do It (1981). In both roles she played a Croupier.