Check It Out! Gil and his friends dive into Gil's favorite books to find his missing library card. Details Casts Videos Galleries Posters Season Lists Title Check It Out! Genres Animation Family Kids Release Date 2012-09-07 Episode Runtime 00 Hours 25 Minutes Season Number 2 Episode Number 9 Production Companies Nickelodeon Animation Studio, Wildbrain Entertainment, Jam Filled Toronto, Nelvana Frank Welker... Bubble Puppy (voice)... Brianna Gentilella... Molly... Skai Jackson... Little Fish... Zachary Gordon... Gil... Reyna Shaskan... Oona... Selena Gonzalez... Deema... Christopher Borger... Goby... Eamon Pirruccello... Nonny... Tino Insana... Mr. Grouper... Bubble Guppies Guppy Style Trailer (New Episode) (Trailer) Original Size (3840x2160) Original Size (3840x2160) Original Size (3840x2160) Original Size (1920x1080) Original Size (3840x2160) Original Size (3840x2160) Original Size (2800x1574) Original Size (1280x1920) Original Size (1000x1500) Original Size (1280x1920) Original Size (1000x1500) Original Size (680x1000) Original Size (1280x1920) Original Size (960x1440) Original Size (960x1440) Original Size (960x1440) Original Size (960x1440) Original Size (667x1000) Original Size (500x750) Season 1 20 Episode(s) 2011-01-24 Season 2 19 Episode(s) 2011-11-04 Season 3 29 Episode(s) 2013-08-12 Season 4 11 Episode(s) 2015-10-06 Season 5 18 Episode(s) 2019-09-27 Season 6 34 Episode(s) 2021-10-19 Season 7 1 Episode(s) 2023-06-09