Catherine

Catherine is the mother of Michael.

History
Catherine came to the practice with her son, Michael, who was sick. Cooper tested him for mono, but the test was negative. After Catherine left the room, Michael admitted he wasn't sick, just in love. Cooper encouraged him to confess his feelings.

Catherine later returned to the practice with her husband when Michael went missing after being beaten up. Cooper agreed to join the search and ultimately found Michael on a roof.

Romantic
She is married to Daniel.

Familial
Her son, Michael, ran away after being beaten up by his best friend, Brian, whom he had asked out on a date.