Lisa

Nurse Lisa was one of Mona's doctors at Radley Sanitarium

In "Birds of a Feather" she appears when Hanna comes to visit Mona. She tells Hanna that she is not allowed visitors and that she didn't know for how long

In "Crazy" she appears again when Aria goes to visit Mona. She Checks to see if Mona is allowed visitors and it says allowed (After "A" changed it at the end of "Birds of a Feather") and walks aria back to Mona. She sits while Mona and aria talk and goes to get Mona's medicine. She comes back And tells aria visiting hours are over.