The Epic Tales of Captain Underpants in Space Best friends George and Harold — along with their classmates and tyrannical principal — are recruited for a mysterious mission in outer space. Details Casts Galleries Posters Season Lists Title The Epic Tales of Captain Underpants in Space Genres Animation Kids First Air Date 2020-07-10 Last Air Date 2020-07-10 Episode Runtime 00 Hours 20 Minutes Total Season(s) 1 Total Episode(s) on All Seasons 6 Runtime 20 Production Companies DreamWorks Animation Nat Faxon... Captain Underpants / Mr. ... Jay Gragnani... Harold (voice)... Ramone Hamilton... George (voice)... Sean Astin... Narrator (voice)... Peter Hastings... Comic Narrator (voice)... Original Size (2048x1152) Original Size (1941x2912) Original Size (2000x3000) Original Size (960x1440) Season 1 6 Episode(s) 2020-07-10