Robert Grubb

as Sergeant Bill Kirby (6 episodes)

as James McCabe (3 episodes)

as Miles Strathairn (1 episode)

as Tagge Webster (2 episodes)

as Gerald Waddington (1 episode)

as Julian Moody (1 episode)

as Percy Spender

as Salty Ben (13 episodes)

as Man Behind the Desk

as Himself

as Det Sen Con Micaelis

as Larry Crockett (2 episodes)

as Dr. Andrew Gallin (1 episode)

as Tim Ayres (2 episodes)

as Mr. Emmett (2 episodes)

as Mr. Bull (26 episodes)

as Colonel Downes

as Sgt. Harris (5 episodes)

as Dr. Geoff Standish (195 episodes)

as Pig Killer

as Sir Frederick Morringer

as Geoff

as William Nielsen

as Dr. Louis Bertrand