Harriet the Spy 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. Details Casts Videos Galleries Posters Season Lists Title Harriet the Spy Genres Animation Kids First Air Date 2021-11-18 Last Air Date 2023-05-04 Episode Runtime 00 Hours 23 Minutes Total Season(s) 2 Total Episode(s) on All Seasons 20 Runtime 23 Production Companies The Jim Henson Company, Titmouse, Apple Studios, Postworks New York, Wellsville 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 ... Grey DeLisle... Mrs. Welsch (voice)... Bumper Robinson... Mr. Horatio / Doorman (vo... Charlie Schlatter... Sport (voice)... Official Trailer (Trailer) Original Size (3840x2160) Original Size (3840x2160) Original Size (3840x2160) Original Size (3840x2160) Original Size (3840x2160) Original Size (3840x2160) Original Size (3840x2160) Original Size (3840x2160) Original Size (3840x2160) Original Size (3840x2160) Original Size (3840x2160) Original Size (3840x2160) Original Size (3840x2160) Original Size (3840x2160) Original Size (3840x2160) Original Size (3840x2160) Original Size (3840x2160) Original Size (3840x2160) Original Size (3840x2160) Original Size (3840x2160) Original Size (3840x2160) Original Size (3840x2160) Original Size (1920x1080) Original Size (3840x2160) Original Size (3840x2160) Original Size (3840x2160) Original Size (3840x2160) Original Size (3840x2160) Original Size (3840x2160) Original Size (1920x1080) Original Size (1920x1080) Original Size (1280x720) Original Size (2000x3000) Original Size (2000x3000) Original Size (2000x3000) Original Size (2000x3000) Original Size (2000x3000) Original Size (2000x3000) Original Size (2000x3000) Original Size (2000x3000) Original Size (2000x3000) Original Size (2000x3000) Original Size (2000x3000) Original Size (2000x3000) Original Size (2000x3000) Original Size (2000x3000) Original Size (2000x3000) Original Size (2000x3000) Original Size (2000x3000) Original Size (2000x3000) Original Size (2000x3000) Original Size (2000x3000) Original Size (2000x3000) Original Size (2000x3000) Original Size (2000x3000) Original Size (2000x3000) Original Size (2000x3000) Original Size (2000x3000) Original Size (2000x3000) Original Size (2000x3000) Original Size (2000x3000) Original Size (2000x3000) Original Size (2000x3000) Original Size (2000x3000) Original Size (2000x3000) Original Size (2000x3000) Original Size (2000x3000) Original Size (2000x3000) Original Size (2000x3000) Original Size (2000x3000) Original Size (2000x3000) Original Size (2000x3000) Original Size (2000x3000) Original Size (2000x3000) Original Size (2000x3000) Original Size (2000x3000) Original Size (2000x3000) Original Size (2000x3000) Original Size (2000x3000) Original Size (2000x3000) Original Size (2000x3000) Original Size (2000x3000) Original Size (2000x3000) Original Size (2000x3000) Original Size (2000x3000) Original Size (2000x3000) Original Size (2000x3000) Original Size (1000x1500) Original Size (2000x3000) Original Size (2000x3000) Original Size (2000x3000) Original Size (2000x3000) Original Size (2000x3000) Original Size (2000x3000) Original Size (500x750) Season 1 10 Episode(s) 2021-11-18 Season 2 10 Episode(s) 2023-05-04