The Zoo gang are resistance fighters known only by their animal-based code names.
Barry Morse as Alec Marlowe - The Tiger - Canadian, now working as a vehicle mechanic.
Lilli Palmer as Manouche Roget - The Leopard - French, running a small cafe "Les Pecheurs" in Nice.
Brian Keith as Steven Halliday - The Fox - American, now a businessman.
John Mills as Thomas Devon - The Elephant - English, running a jewellery shop in Nice, was given his nickname because of his excellent memory.

Original Run:April 5th 1974 – May 10th 1974
Number of episodes:6