The Wild, Wild West and Star Trek: a single degree of separation

[happydalek]

In my first post about The Wild, Wild West, I mentioned that a great many of its guest-stars also had roles in the original Star Trek television show.  I made vague threats about assembling a picspam with just such a theme, but the internets have done me one better.  Behold, a youtube video:

(It's not even an exhaustive list, either.  I know there are a few they missed, but these are probably the most obvious.)