Dahmer – Monster: The Jeffrey Dahmer Story cast is including:
Evan Peters as Jeffrey Dahmer (10 episodes), Richard Jenkins as Lionel Dahmer (10 episodes), Molly Ringwald as Shari Dahmer (10 episodes), Michael Learned as Catherine Dahmer (10 episodes), Niecy Nash as Glenda Cleveland (10 episodes), Nick Fisher as Young Jeffrey Dahmer (3 episodes), Michael Beach as Dennis Murphy (2 episodes), Colby French as Patrick Kennedy (2 episodes), Shaun Brown as Tracy Edwards (2 episodes), Penelope Ann Miller as Joyce Dahmer (2 episodes), Kieran Tamondong as Konerak Sinthasomphone (2 episodes), Brey Chanadet as Other Kid (1 episode)