David McCallum in The Unknown, as Tone Hobart. 1964.
Facts aside, this is one hell of a groovy photo.
because I’m obsessive that way: it was an Outer Limits episode actually called: The Forms of Things Unknown, and it’s very very good; unfortunately except for some clips it’s disappeared from youtube. If you have access to Hulu, you can watch it: http://www.hulu.com/watch/63081