But wait—there’s a massive, hilarious twist. The original Red Devil murder, the one that started it all? That was committed by Cathy Munsch (the incredible Jamie Lee Curtis), the Dean of the university. She killed a baby in a bathtub years earlier. (Yes, this show is insane.) Then she framed someone else for it. So technically, the first killer was a middle-aged woman in a pantsuit, not a weird two-headed family.
Season two moved to a haunted hospital, and the killer was a green-faced, “Green Meanie” ghoul who loved making people’s heads explode. The culprit? Kathy Bates, playing the adorable Dr. Cathy Munsch… wait, no. This time it was Cassidy Cascade, the hot, deadpan doctor played by Taylor Lautner. Hmm, nope, it was actually Chanel #3 (Billie Lourd) for about five minutes. The real answer? The Green Meanie was a vengeful ghost named Dr. Humboldt using a radioactive injection, all because a patient called him a “bleep-head” in 1985.
‘Scream Queens’ Red Devil Killer Revealed! | Scream Queens, Television