 Dorrie Kavanaugh played Cathy longer than any other actress in the role, from October 1972 until June 1976, until she was fired by executive producer Doris Quinlan.In late 1975, actress Robin Strasser was offered a long-term contract with the series to take up the role but declined upon the knowledge that Kavanaugh would be fired to accommodate the recast.Strasser would later go on to be the permanent replacement of Claire Mallis following a brief recast in the role of Dr. Dorian Lord.