An interesting Star Trek connection via the second-season Bonanza episode, "The Ape": The episode was written by Gene L. Coon and guest starring in a small role was Leonard, who played a real weasel. Anyway, I was unaware of Coon's involvement with Bonanza, so did Coon remember Nimoy from his part on Bonanza and was Leonard cast as Spock with that earlier role in mind?