Doctor Who and the Silurians
Overview
Investigating mysterious power failures and a death at an underground research centre, The Doctor discovers a colony of Silurians - prehistoric, intelligent reptiles who went into hibernation before man evolved. But now they have woken up, and they are prepared to wipe out mankind with a killer plague to get their planet back.
Cast

Jon Pertwee
The Doctor

Caroline John
Liz Shaw

Nicholas Courtney
Brigadier Lethbridge-Stewart

Fulton Mackay
Dr. Quinn

Norman Jones
Major Baker

Peter Miles
Dr. Lawrence
Thomasine Heiner
Miss Dawson
John Newman
Spencer

Geoffrey Palmer
Masters
Ian Cunningham
Dr. Meredith

Paul Darrow
Captain Hawkins
Roy Branigan
Roberts