<P> That evening, Derf spots Jeffrey walking home alone, with blood on his fingernails . Derf offers a ride to Jeffrey, finding him living alone with no plans for the future . Derf tells him that he's leaving for college the following day and offers him his drawings of Jeffrey, which he declines . He menacingly invites Derf inside for a beer, but Derf turns him down . As Derf walks back to his car, Jeffrey picks up a baseball bat and is about to strike him with it, although he later puts it down . As Derf gets in the car and drives home, he notices the bat . Jeffrey never has contact with his high school friends again . The next morning, Jeffrey drives around and picks up hitchhiker Steven Hicks from a concert . The closing credits note that Steven Hicks was never seen again, and that Jeffrey Dahmer admitted to killing 17 men when he was finally arrested . </P> <Ul> <Li> Ross Lynch as Jeffrey Dahmer, Lionel and Joyce's son, who has obsessive fantasies of rape, cannibalism, and necrophilia . Lynch had previously been employed as a child actor by the Disney Channel . John Backderf, the author of the graphic novel, was enthusiastic about this casting against type, stating that Lynch's performance would make viewers "uncomfortable because it's so familiar". </Li> <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> <Li> Tommy Nelson as Neil, one of Dahmer and Backderf's friends </Li> <Li> Harrison Holzer as Mike, one of Dahmer and Backderf's friends </Li> </Ul> <Li> Ross Lynch as Jeffrey Dahmer, Lionel and Joyce's son, who has obsessive fantasies of rape, cannibalism, and necrophilia . Lynch had previously been employed as a child actor by the Disney Channel . John Backderf, the author of the graphic novel, was enthusiastic about this casting against type, stating that Lynch's performance would make viewers "uncomfortable because it's so familiar". </Li> <Li> Alex Wolff as John "Derf" Backderf, Dahmer's closest friend and an aspiring graphic artist </Li>

Who played jeffery dahmer in my friend dahmer