Nancy Barrett was taken ill not long before shooting began for this episode, and she was replaced in the role of Carolyn Stoddard by Diana Walker. Miss Walker had her sides letter perfect; her only flub comes when she delivers a line in a level conversational tone, and a moment later has to apologize for shouting. She doesn’t seem to have much idea of what was going on in the story, though. Her Carolyn is a calm, practical-minded homemaker of the sort you might find on another daytime soap of the period, not someone who is keeping a stray Frankenstein’s monster in the spare room. Besides, Miss Barrett is probably Dark Shadows’ most reliably entertaining performer, an impossible act for anyone to follow.
Aside from the two actors who at various times filled in for Vince O’Brien in the famously disposable role of Sheriff Patterson, I believe Miss Walker is the only person to have served as a substitute for a temporarily unavailable cast member. Many times, the makers of the show went out of their way to rearrange the shooting schedule or rewrite scripts to avoid substitutions. Many of the show’s fans were extremely young and extremely intense, so I suspect Miss Walker’s mail after this appearance would have included some ugly items that would have confirmed the producers in their reluctance to call up the reserves.
Today is the last time we see Jerry Lacy as lawyer Tony Peterson. Mr Lacy will be back in other roles. In 1969 and 1970, he and Diana Walker were reunited in the original Broadway cast of Play It Again, Sam, in which Mr Lacy scored a triumph with the same Humphrey Bogart imitation that is the basis of Tony’s character, while Miss Walker played Sharon and understudied Nancy.
Dark Shadows Commentary 