Byron Montgomery (Chad Lowe)Byron Montgomery (Chad Lowe) lives in Rosewood, Pennsylvania and is the husband of Ella and the father of Aria and Mike Montgomery. He is a history professor at Hollis College. Aria discovered that Byron was having an affair with one of his students and Byron asks Aria to keep this secret from Ella. Byron moves his family to Iceland for a year to remove himself from the affair. While he has made mistakes, Byron loves his family and is a devoted father. He is very protective of his children and wants to repair the damage he has done to his marriage.