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)

Brian Stirner

Laboratory Assistant (voice)

Penelope Lee

Lynn Driver (voice)

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)