Evan Peters: Jeffrey Dahmer - Monster: The Jeffrey Dahmer Story

Evan Peters delivered a chillingly precise performance as one of America's most notorious serial killers. Rather than relying on simple mimicry, Peters focused heavily on capturing the cannibalistic killer's rigid, heavy posture, awkward social interactions, and profound lack of empathy. The role was so psychologically intense that Peters famously stated he had to do a complete emotional "detox" for months afterward to shed the character's dark mindset.