Louise is a fictional character portrayed by Barbara Montgomery in the TV series Grey's Anatomy.
In the first episode they appeared in, titled Family Affair (season 12), they were 76 years old.
They appear in 1 episodes out of a total of 430 aired so far
Louise is also portrayed by Peggy Dunne.
Episodes1
Family Affair
episode S12.E24 may 2016Meredith and Maggie support Amelia on an important day; Jo reveals that she has been keeping secrets from Alex while Arizona and Callie deal with the impact of their custody arrangement. Meanwhile, Ben leaps into action to help a friend.