who plays oliver queen's mom in arrow
List of Arrow characters Moira Queen (portrayed by Susanna Thompson; Seasons 1-2) is the mother of Oliver and Thea, the former acting CEO of Queen Consolidated, mayoral candidate and wife of Robert Queen and later Walter Steele. She also had a brief affair with Malcolm Merlyn after his wife's death, which resulted in Thea's birth. She is based on the minor DC Comics character of the same name.