Just over a year ago I acquired the storyboards for the season one He-Man episode "Ordeal in the Darklands". For those of you that don't know, the original script had a vastly different ending, which I will attempt to cover on this Blog at another time. However, the storyboard itself followed the episode produced. Except for one notable difference. In this image, from the storyboard by Warren Greenwood, you can see that the Crimson Scourge was more humanoid in appearance, as opposed to his overgrown panther-like form in the episode. This creature actually looks more like the Spirit of Evil from the episode "Wizard of Stone Mountain"!
(click on the image to see it at full-size)