Here's a short interview with actor Malachi Throne at this year's Wondercon. Thanks to Zennie Abraham for this.
Related: My pal Brian Fies' visit to Wondercon.
And here's the original trailer for the STAR TREK episode "The Menagerie Part 1," which aired in the show's first season on November 17, 1966. Look for Malachi Throne in conversation with Captain Kirk at about the 27 second mark.