John Hurt
Snitter (voice)
Christopher Benjamin
Rowf (voice)
James Bolam
The Tod (voice)
Nigel Hawthorne
Dr. Boycott (voice)
Warren Mitchell
Tyson / Wag (voice)
Judy Geeson
Pekinese (voice)
Patrick Stewart
Major (voice)
B
Brian Stirner
Laboratory Assistant (voice)
P
Penelope Lee
Lynn Driver (voice)
G
Geoffrey Matthews
Farmer (voice)
Barbara Leigh-Hunt
Farmer's Wife (voice)
John Bennett
Don (voice)
John Franklyn-Robbins
Williamson (voice)
Bill Maynard
Editor (voice)
Malcolm Terris
Robert (voice)
Rosemary Leach
Vera (voice)
Philip Locke
Civil Servant #1 (voice)
B
Brian Spink
Civil Servant #2 (voice)
T
Tony Church
Civil Servant #3 (voice)
Anthony Valentine
Civil Servant #4 (voice)
William Lucas
Civil Servant #5 (voice)
Dandy Nichols
Phyllis (voice)
P
Percy Edwards
Animal Vocalizations (voice)