Dr. Eleanor O'Hara is an ER doctor at All Saints Hospital. She is portrayed by Eve Best.
She is a colleague and very close friend of Nurse Jackie Peyton. In Season Five, she had a baby boy. She is very rich; she lived in a hotel whilst in New York and stated that she threw her once-used clothes away.
She left the hospital and country after her baby was born, and she returned for Jackie's sobriety party. After that, she was seen again in the season 7 finale where the hospital closes for good.