Thanks for transcribing the interview; are you a professional transcriber?
I would like to hear Mr. Karlen talk about some of the other characters he played on the show, too, such as Karl Collins (1897) and Desmond Collins (1840).
I had heard the rumor about supposed "homophobia" (wrongly attributed to Dan Curtis, IMO) regarding Willie having to be bitten on the wrist instead of the arm. This is the first confirmation of that from a cast member that I've seen, and I'm glad Karlen sets the record straight when he attributes this to industry standards.