(written from a Production point of view)
Craig Hundley (born 22 November 1954; age 62) is an actor and musician from Minneapolis, Minnesota who started as a child actor: he made multiple appearances in Star Trek, Adam-12, The Flying Nun and Bewitched. In one of his two appearances on the latter, he played the son of a character played by James Doohan. In Gene Roddenberry's Planet Earth, the second of the Dylan Hunt pilots, Hundley appeared as a harpsichordist. Later in life, he formed a band, with himself as headliner, and branched into musical composition.
As an LA studio session musician and electronic music composer working under the name Craig Huxley, created the "Blaster Beam," a massive stringed instrument responsible for the weird tonalities of V'ger bass blasts in Jerry Goldsmith's score for Star Trek: The Motion Picture, heard in the beginning of the film during the Klingon sequence. He also created the synthesizer programming for the Project Genesis sequence in Star Trek II: The Wrath of Khan and Star Trek III: The Search for Spock. "After I created this music, I expanded it and included it on an album, Genesis Project, along with my version of the TV series theme," explained Huxley. (Starlog, November 1986, p. 60)
Hundley filmed his scenes (including a deleted scene) for "Operation -- Annihilate!" on Wednesday 15 February 1967, Friday 17 February 1967, and Monday 18 February 1967 on location at the TRW Space and Defense Park and at Desilu Stage 9. He filmed his scenes for "And the Children Shall Lead" between Thursday 27 June 1968 and Friday 5 July 1968 at Stage 9 and Stage 10.