<Li> Oona ("The Sweetie 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 ("Mr. Cautious") (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 . Despite not smiling a lot, 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) (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 .)) Once Mr. Grouper changes his body color, the Guppies will have almost 100% of the time a lot of fun with him . </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>

Who does the voice of mr grouper on bubble guppies