The nurse is played by Evelyn Atkinson--the only woman of color ever to appear on the show.
The reluctant Joe keeps his appointment with Angelique Weat the House by the Sea. He knows he should be with Maggie and then with Tom. Angelique assures him, Later, you and I will both see Tom. Suddenly the dreadful truth dawns on poor Joe as he gasps, You know about Tom! Angelique simply nods and holds out her arms. Despite his revulsion, Joe is utterly unable to resist and avidly seizes her, enthusiastically participating in his own ruination (a very well-done moment, by the way).
While Joe is visiting Tom at the hospital, Nicholas plies all his satanic charm to keep Maggie distracted.
We hear a squeaking outside Tom's window as Angelique approaches, but we never see her in bat form. Would it really have broken the budget?