<P> The voice cast is based in New York and California and the dialogue is recorded at New York - based Dubway Studios and Rhumba Recorders and Burbank - based Nickelodeon Animation Studio . </P> <P> Heavy metal speaker Ozzy Osbourne guest starred as Sid Fishy in the 2015 episode Super Guppies . </P> <Ul> <Li> Molly ("The Natural Born Leader") (voiced by Brianna Gentilella) is a guppy girl with a caring personality . She is a co-host of the show with Gil and is a natural leader of the group . She has long pink hair, brown skin, brown eyes, a swirly bikini top, and a blue swirly tail . Molly appears alongside Gil in the transitional segments, where she aids Gil in hopes that problems won't arise . </Li> <Li> Gil ("The Turbo - Charged Boy") (voiced by Zachary Gordon, Jacob Bertrand (speaking voice), Teddy Walsh (singing voice), and Jay Gragnani) is a guppy boy with a silly personality . He has blue hair, blue eyes, and a green camouflage tail . Gil gets scared easily, and appears alongside Molly in the transitional segments . In those segments, Gil often attempts to do something but with unexpected results . </Li> <Li> Goby ("The Make Believer") (voiced by Jelani Imani, Christopher Borger (singing for Season 1), Marleik "Mar Mar" Walker (2013 - 2015), Johntae Limpscomb (singing for The Puppy and the Ring!), and Isaac Ryan Brown) is a guppy boy with an imaginative personality . He has indigo hair, brown eyes, and a purple / blue wavy tail . </Li> <Li> Deema ("The Drama Queen") (voiced by Angelina Wahler, Selena Ann Gonzalez (singing for Season 1), and Grace Kaufman) is a guppy girl with a zany personality . She has orange / yellow curly hair, blue eyes, orange earrings, which she did wear in "Temple of the Lost Puppy," and an orange / yellow spotted bikini top and tail . Deema has a wild imagination and often plays the role of shopkeeper in the "store" segments . </Li> <Li> Oona ("The Cutie Pie") (voiced by Reyna Shaskan, and Tori Feinstein) is a guppy girl with a sweet personality . She has purple hair in two pigtails with a pink star shaped clip, brown eyes, and a purple / pink striped tail . Oona is the only female Bubble Guppy whose tail is attached to her top . </Li> <Li> Nonny ("The Neutral One") (voiced by Eamon Pirruccello, and Jet Jurgensmeyer, and Eason Rytter (singing for The Puppy and the Ring!)) is an intelligent guppy boy . He has orange hair, green eyes, a blue scuba mask (his glasses), and a green striped tail . He is the most polite and mature member of the group . He is smart and helps Deema pronounce words and helps his friends answer their questions . </Li> <Li> Mr. Grouper (voiced by Tino Insana (speaking voice), (Fred Tatasciore) (speaking for 2013 - 2015), (Chris Phillips) (singing voice) is the Guppies' teacher . He is an orange and yellow fish . (although most of his body is orange) Mr. Grouper respects the kids' imaginations, ideas, and suggestions . Oddly, Mr. Grouper can also change his body into different colors like red, yellow, green, blue, purple, pink, lime green, olive green, navy blue, magenta, white, turquoise, brown, white, black, gray, and can be able to return to his normal body color orange . (In "The Crayon Prix," Mr. Grouper changed his body color more than once . (All other episodes, Mr. Grouper changed his body color once .)) The Guppies enjoy it 100% of the time whenever Mr. Grouper changes his body color . </Li> <Li> Little Fish (voiced by Skai Jackson, Mia Vavasseur, and Kalya Erickson) are a trio of fish that look alike and frequently answer questions that are put to the home audience by the main characters . </Li> <Li> Bubble Puppy (voiced by Frank Welker) is Gil's adopted pet puppy . He has orange and white fur and a green collar with a yellow fish license . </Li> </Ul> <Li> Molly ("The Natural Born Leader") (voiced by Brianna Gentilella) is a guppy girl with a caring personality . She is a co-host of the show with Gil and is a natural leader of the group . She has long pink hair, brown skin, brown eyes, a swirly bikini top, and a blue swirly tail . Molly appears alongside Gil in the transitional segments, where she aids Gil in hopes that problems won't arise . </Li>

Who plays the voices of the bubble guppies
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