Professor Denzil Dexter of the University of Southern California regularly comes on to talk about his work. Dressed in classic hippie/Open University attire, and with a habit of flicking his long hair over his shoulders, he stands in his shadowy laboratory and explains his latest experiments.
Professor Dexter's experiments are in turn pointless and dangerous. They seem to stem from a combination of optimism and an uncertain grasp of reality.

He has tried to pass his hand through a pane of glass by changing its molecular structure, made a special hat to harness gamma rays, and announced that he is investigating spacebats.

His only companion is his assistant Dave. Rarely seen, Dave turns out to be a monkey.