Isabelle McNallyIsabelle McNally is an American actress. She portrayed Madeline Loomis in the television series Bates Motel. She has appeared in such films as Frances Ha and Indigo [Children (film)|Indigo Children].Early lifeMcNally was born to parents Keith McNally and Lynn Wagenknecht and her siblings are Sophie and Harry. She grew up in Greenwich Village.Personal lifeIt was reported in January 2014 that McNally was then romantically linked with Jonah Hill.