Anne Heche plays the part of Joyce , a mentally ill mother in My Friend Dahme .
They aren ’ t afraid to get ugly , both in their treatment of everyone around them as well as in their post-brawl bruises , which makes them that much funnier '' .  2017 , Heche played a supporting role in My Friend Dahmer as the teenaged Jeffrey Dahmer ’ s mentally ill mother , Joyce .
Anne Heche