I recently acquired this really fantastic replica of "Dr. Theopolis" from the show "Buck Rogers in the 25th Century". This was researched and built by a pal who goes by the name Droidboy.
I seem to recall there being some debate about the color. I guess the way it looks on screen vs the way it looks in real life vs the way it looks today has caused some confusion. I don't really know, and frankly don't care, as I think this is pretty unmistakeable as the little wise-cracker who hung around twiki's neck.
It even looks more green in these photos than it does in real life, if that's any consolation.