Hi, this is something that's crossed my mind in the past, mostly about TOS though....Kirk, Spock, McCoy, Christine, Chekov, and Scotty. The one connection that makes sense to me is that Roddenberry was part Jewish, and Shatner, Nimoy, Koenig, Barrett as well as Gene Coon and many of the TOS writers were also Jews. The Jewish language seems to feature that consonant rather strongly. I could be totally wrong, it's just an impression.
That's interesting. Thanks.