Barbara Wright and Ian Chesterton, two humble teachers during 1963, discover a genius student's grandfather, simply known as "the Doctor", and his police box time machine. Deciding that the pair knows too much about his otherworldly origins, they are whisked away on a journey through time and space.

• BBC
• William Hartnell
• William Russell
• Jacqueline Hill
• Carole Ann Ford
• Derek Newark
• Alethea Charlton
• Eileen Way
• Jeremy Young