B.K. Cannon (Then)
B.K. Cannon played the role of Mary Beth Tucker on “Switched at Birth.” Mary Beth worked at the summer carnival called ‘Maui, Kansas,’ and she was good friends with Bay Kennish. Before her time on “Switched at Birth,” B.K. appeared on shows like “Glee,” “Good Luck Charlie,” “House,” “ER” and “Lie to Me.”