Outspoken and perpetually curious. That's 11-year-old Harriet in a nutshell. But if she’s going to be Harriet M. Welsch, future writer, she'll need to know everything. And to know everything means she'll need to spy...on everyone.
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)
