After all, why shouldn't Klingons have ridged and un-ridged?
Or even ruffled.
I, for one, thought that the explanation in Enterprise
was brilliant. Had "Trials and Tribble-ations" never acknowledged that the Klingons didn't resemble Worf, I would have accepted (perhaps a bit grudgingly
) that the Klingons always had ridges, even though I know the full story of how the original makeup came about. (*) But since they did hang a lampshade on it, Enterprise
's explanation works well.
(* - For those who don't know, the story, as I read it, was that nobody had really put any thought into what Klingons should look like. So John Colicos and Fred Phillips chatted about it when Colicos showed up for his first day of shooting on "Errand of Mercy," and together they came up with the Genghis Khan look.)