Joe 90 is a 1960s British science-fiction television series following the adventures of a nine-year-old child, Joe McClaine, who starts a double life as a schoolboy-turned-spy when his scientist father invents a device capable of duplicating and transferring expert knowledge and experience from one human brain to another. Equipped with the skills of the foremost academic and military minds, Joe is recruited by the World Intelligence Network and, becoming its "Most Special Agent", pursues the ideal of world peace and saving human life.

Len Jonesas Joe 90 (voice)
Rupert Daviesas Professor Ian "Mac" McClaine (voice)
Keith Alexanderas Sam Loover (voice)
David Healyas Shane Weston (voice)
Gary Filesas Jim Molineaux (voice)
Shane Rimmeras Kelly (voice)
Sylvia Andersonas Mrs. Ada Harris (voice)
Jeremy Wilkinas Ralph Clayton (voice)
Shane Rimmer
Gerry Anderson
John Lucarotti
Desmond Saunders
David Lane
Sylvia Anderson
Barry Gray