Jack Kerouac | Jack Nicholson | Jack Nicklaus | Jack the Ripper | Jack London | Jack Kemp | Jack Kirby | Jack Lemmon | Jack Black | Jack Abramoff | Jack Dempsey | Jack Benny | Jack White | Wolfman Jack | Union Jack | Jack White (musician) | Jack and the Beanstalk | Jack Johnson | Jack Charlton | Jack Palance | Jack Daniel's | Jack | Jack Paar | Jack Layton | Jack Straw | James Watson | Jack Vance | Jack Bruce | Jack Warden | Jack's Mannequin |
In the pilot series other members of the cast included John Broadbent, Violet Carson, Fred Fairclough, Fred Ferris, Tom Harrison, Jack Howarth, Shirley King, Eddie Leslie, Tony Melody, Bob Monkhouse, Herbert Smith, Brian Trueman, Jack Watson, Patrick Wells, and Rosalie Williams.
Jack Hedley starred in the central role of Alan Haldane, whilst other notable cast members in the serial included Betty Arvaniti, Neil McCarthy, Stefan Gryff, Patience Collier, Jack Watson, Lalla Ward, Gareth Thomas, Patrick Magee, Marina Sirtis and Sally Knyvette.