Commander Williams is a World Air Force officer who appears in the Captain Scarlet and the Mysterons episode Flight to Atlantica. He briefs Captains Blue and Ochre before the two Spectrum officers head off in V.17-Alpha to disperse a wreck moving towards Atlantica.
He was voiced by Gary Files.
- The same puppet was also cast as Steele in Special Assignment and the Vice-President in The Launching.
- In Joe 90 it appears as the U85 Captain in Big Fish, the Astronaut in Most Special Astronaut, Preston in Colonel McClaine, the 1st Border Guard in The Professional and Marney in Breakout.
- In The Secret Service it appears as the Alpha X-Ray 140 Captain in A Case For The Bishop, Forrester in Hole In One and the Co-Pilot in May-Day, May-Day!