Cast Credits All at Number 20 (1986) Guest starring as Head Waiter Episode 2x04: Warts and All (Nov 17, 1987) The Bounder (1982) Guest starring as Waiter Episode 1x07: The Rival (May 28, 1982) Only Fools and Horses (1981) Guest starring as Mario Episode 6x03: Chain Gang (Jan 22, 1989) Never the Twain (1981) Guest starring as Doctor Episode 11x01: Viva Espana (Sep 4, 1991)