Knox, Knox, Who's There? is the third episode of The Further Adventures of SuperTed
US Broadcast DateEdit
- 14th February 1989 on The Funtastic World of Hanna-Barbera
UK Broadcast DateEdit
- 22nd January 1990 and 24th January 1990 in two parts on BBC1.
- Danny Cooksey as SuperTed (US version)
- Pat Fraley as Spottyman (US version)
- Derek Griffiths as SuperTed and Narrator (UK version)
- Jon Pertwee as Spottyman (UK version)
- Victor Spinetti as Texas Pete
- Frank Welker as Bulk and Speckle
- Melvyn Hayes as Skeleton
Videos it had appeared onEdit
- The only US video release by Hanna-Barbera Home Video along with Leave It To Space Beavers, Ruse of the Raja and Phantom Of The Grand Ol' Opry
- The second UK BBC Video release with Bubbles, Bubbles Everywhere.