Byron Montgomery is the father of Aria and Mike Montgomery and is the husband of Ella Montgomery. Byron is a professor and a department chair at Hollis College who was a main character (1-3) and a special guest character from (4-present).
Biography[]
Aria and Alison became aware of Byron's infidelity after seeing him and Meredith in the back of his car, but Ella was not. In an awful parenting move, Byron persuaded Aria to keep his extramarital affair a secret from the rest of the family.
After Alison's disappearance, Byron and his family left for Iceland on sabbatical. When they return, Aria becomes suspicious that he is seeing Meredith again. Things are made worse when Meredith befriends an unsuspecting Ella. Ella eventually finds out about Byron's affair through a letter from "A". Byron and Ella have a big fight about who should move out of the house, as both need some space. In the end, Ella moves out into an apartment above her art studio. Byron pursues a relationship with Meredith before her mental state gets the best of her and she leaves to receive treatment.
Byron manages the finances and kids' schedules with some difficulty. Many episodes show him ordering take-out or seemingly handling all the bills of the house. Many times, he asks Aria to take Mike to lacrosse practice or other school activities.