William Hartnell The Doctor Actor Gerald Taylor War Machine Operator, WOTAN Guest Star Jocelyn Lane Dodo Chaplet Guest Star Jackie Lane Dodo Guest Star Alan Curtis Major Green Guest Star John Rolfe Captain Guest Star John Harvey Professor Brett Guest Star John Cater Professor Krimpton Guest Star Anneke Wills Polly Guest Star William Mervyn Sir Charles Summer Guest Star Sandra Bryant Kitty Guest Star Kenneth Kendall Television Newsreader Guest Star Michael Craze Ben Guest Star George Cross The Minister Guest Star John Boyd-Brent Sergeant Guest Star Ewan Proctor Flash Guest Star Eddie Davis Worker Guest Star Michael Ferguson Director Ian Stuart Black Writer