The Silurians, Part One

Jon Pertwee The Third Doctor Caroline John Elizabeth "Liz" Shaw Nicholas Courtney Alistair Gordon Lethbridge-Stewart John Levene Sergeant Benton JN John Newman Spencer BM Bill Matthews Davis BB Brendan Barry Hospital Doctor Geoffrey Palmer Masters DP David Pollitt Private Wright RB Roy Branigan Roberts Ian Talbot Travis Paul Darrow Captain Hawkins Fulton Mackay Dr. Quinn HS Harry Swift Private Robins PM Peter Miles Dr. Lawrence RS Richard Steele Sergeant Hart Paul Barton Silurian Simon Cain Silurian GR Gordon Richardson Squire NJ Nigel Johns Young Silurian JC John Churchill Silurian Dave Carter Silurian Dave Carter Old Silurian NJ Nancie Jackson Doris Squire Pat Gorman Silurian Scientist Pat Gorman Silurian Norman Jones Major Baker Ian Conningham Dr. Meredith AM Alan Mason Corporal Nutting Peter Halliday Silurian Voices TH Thomasine Heiner Miss Dawson Bella Emberg Nurse