Doctor Giadello is a character from the Captain Scarlet and the Mysterons episode Spectrum Strikes Back. He is the inventor of the Mysteron Gun and the C38 Detector. He also attended the first Spectrum Intelligence Conference, where he presented the two weapons to Colonel White.
Doctor Giadello was voiced by Jeremy Wilkin.
- In Joe 90 the puppet was rewigged with white hair and was used as Maurice Estoral in Operation McClaine, Reverend Joseph Shepherd in The Unorthodox Shepherd, the Vizier in King For A Day, Dr. William Kelvin in Arctic Adventure, the General in Talkdown and Stewart in See You Down There.
- In The Secret Service it appears as Skipper in To Catch A Spy and a Signalman in Last Train To Bufflers Halt.