As Oz strangles Victor to death, he explains that he can’t have any weaknesses. His regard for Vic is a weak spot that could be exploited by other enemies in the future. So he eliminates that chance by killing Vic himself. “He really loses his humanity by the end,” LeFranc said, “or any inkling that he had of it.”

This story includes major plot details from the finale of HBO’s “The Penguin,” now streaming on Max. It was a dark night on set. At a Q&A following a screening of “The Penguin” finale at the Saban Media Center on Nov.