You know, I still don't get why they needed to make him up as much as they did for "The Menagerie". Sean Kenney was chosen because he apparently had superficial similarities to Hunter -- but to my eye, they're actually even closer than that. Just look at Kenney without make-up in "Arena":
And compare with Hunter as Pike:
I'm sure they could have had him playing a more articulate Pike, even one who speaks a little (albeit maybe not very much, as their voices might not be quite
as closely matched as their looks). Putting the dude in heavy make-up and only giving him a beeper to communicate with always seemed like overkill to me, because certainly his physical resemblance to Jeff Hunter is actually much more striking than that.