The Investigator: one that didn’t take off
Not hard to see why this series, conceived by Gerry and Sylvia Anderson, never took off. According to the YouTube description, The Investigator was a pilot from c. 1973, and no series was ever commissioned. The combination of live action and puppetry do not work nearly as well as in UFO, and the idea of miniaturized teenagers seem a bit preposterous. (I know there was a miniaturized character in The Secret Service, but at least it didnât rely on him exclusively; and he could get back to normal size when the job was done.)
At least we know the hairstyles of the Supermarionation puppets went â1970sâ to match the times.
I believe it is Shane Rimmer (whom Lewis Gilbert called the âstandard American actorâ) as John.