My kids have just finishing watch "Naked Time," and they are dancing around the house and singing "I'll Take You Home Again, Kathleen." Their question for the forum - why wasn't Lt. Riley in many more episodes?
From what I remember reading, both of Hyde's appearances on Star Trek came about as a result of his being invited to try out while he was on the Desilu lot auditioning for other shows. He ended up joining a stage production of Hair!
shortly after filming of "The Naked Time," and not long after that left acting altogether for something like fifteen years.