Harriet’s ambition to know and see everything may change reclusive Agatha K. Plumber’s life for the better.
Beanie Feldstein
Harriet M. Welsch (voice)
Jane Lynch
Ole Golly (voice)
Lacey Chabert
Marion Hawthorne (voice)
Kimberly Brooks
Janie (voice)
Crispin Freeman
Mr. Welsch / Mr. Withers (voice)
Grey DeLisle
Mrs. Welsch (voice)
Bumper Robinson
Mr. Horatio / Doorman (voice)
Charlie Schlatter
Sport (voice)
