<Li> Alex Wolff as John "Derf" Backderf, Dahmer's closest friend and an aspiring graphic artist </Li> <Li> Vincent Kartheiser as Dr. Matthews </Li> <Li> Anne Heche as Joyce Dahmer, Lionel's wife and Jeffrey's mother </Li> <Li> Dallas Roberts as Lionel Dahmer, Joyce's husband and Jeffrey's father </Li>

Who plays the mother in my friend dahmer