[spoiler]I'm pretty sure they did, MT, but my old notes say that they used a body double for Alexis and had her stand with her back to the camera so we could see Angelique's face. They did the same for the scene with both Julia and Hoffman, with Hoffman's body double also standing so we couldn't see her face.[/spoiler]
We saw in the lead-in to 1897 that Quentin's Room actually consists of two rooms: an outer, library-ish room, and Quentin's inner sanctum, with the roll-top desk and the wardrobe where Barn finds the I Ching--and presumably a big, comfortable bed that we never see (but that I'm sure Beth is more than familiar with).
Even if the front doors to the Great House were locked (as never seems to be the case), I'm sure that Petofi would have no trouble getting in.
The scenes with Beth and Jamison play out exactly as in the narrative of Beth the ghost, with several small differences. This time, after Jamison leaves her, Beth is furious. And of course, just as she aims the gun at Quentin, Petofi holds out the corrupt but powerful Hand and takes the gun from her. Quentin and Beth survive the encounter, but Beth is devastated at the loss of her disastrous love.
And now Petofi demands payment for saving Quentin's life. Quentin has followed Petofi’s advice and is pouring himself a brandy. When Petofi knocks, he invites the count in. Thank you for saving my life, Quentin says grudgingly. Petofi says, Your life was never really in danger--once I decided to change your fate. Why did you? Quentin asks. I’ve told you already, Petofi replies--I like you. And now I’ve come to ask for my price: I want you to perform a very great service for me. Angrily Quentin demands to know what it is. Petofi says, Barnabas Collins is a friend of yours. He will confide in you. I want you to find out from him exactly how he came here from the future and how he intends to return. He isn't to know, of course, that you are doing this for me. Quentin flatly refuses to become an informant. Petofi answers, You will find, Quentin, that you can refuse me nothing now. If it is payment you want for saving my life, Quentin says, I will do whatever I think is reasonable. Unmoved, Petofi replies, You will do whatever I tell you to do. You don't seem to understand the extent of my influence on your life. If it had not been for me, you would have been prowling the woods last night, looking for another victim. I prevented that. I did what no other living soul could do. I ended your curse. I don’t believe you’re responsible, Quentin says. Then why didn’t you change last night? Petofi asks. I don’t know, Quentin admits. Petofi says, I told you that it would be some time before you understood. But didn't things seem to become a little clearer when you returned to your room last night and saw your portrait? That portrait wasn’t of me! Quentin insists. Petofi insists back, It was your portrait, Quentin. It had the face of the werewolf because the moon was full. You mean-- Quentin starts but can’t bring himself to finish. Look at your portrait now, Petofi suggests. You’ll see what I mean. Quentin takes the portrait from the closet, uncovers it--and sees his own painted likeness staring back at him. (Apparently the moon was full for only one night this month.) Petofi presses his advantage: The portrait changed, Quentin, and you did not. What would you give if you could always look like that portrait the way it is now? I think I would give anything! Quentin answers far too hastily. Petofi says triumphantly, And so you shall. So it shall be! You will find that the betrayal of a friend is a small price to pay for what I offer you. You are impressed--I can see it. You have decided to join me and betray Barnabas Collins. A very wise decision it is, too! Yes, my dear boy. Now you belong to Petofi and--who knows?--perhaps to the ages!.........…
[For some reason, TD is credited as Professor Elliott Stokes, but of course he plays only Count Andreas Petofi in this episode.]