<Tr> <Td> </Td> <Td> This article may contain an excessive amount of intricate detail that may only interest a specific audience . Please help by spinning off or relocating any relevant information, and removing excessive detail that may be against Wikipedia's inclusion policy . (August 2012) (Learn how and when to remove this template message) </Td> </Tr> <P> Blue's Clues is an American children's television show airing on the Nickelodeon family of channels . This article is a list of characters that have appeared in the television series . As well as several main characters, there are a few recurring characters and many minor characters in the series . </P> <P> Blue the dog (portrayed by Traci Paige Johnson) is the main protagonist of the Blue's Clues television series . She is a playful, smart, energetic, and friendly little blue - spotted puppy who enjoys doing fun things with her friends . She is owned by Steve (later Joe). She expresses this by leaving clues around the house so everyone can guess what she wants to do . Her basic mark for leaving clues is her blue pawprint . Blue likes to eat sandwiches and drink milk . She also possesses many other human characteristics . Every episode she initiates a game of Blue's Clues in which she leaves three blue paw print clues for Steve and the viewer to find in order to answer a question . Though Blue cannot speak like most of the characters, she seems to be able to communicate with others through barking . In Blue's First Holiday, it is revealed that Blue played her first game of Blue's Clues trying to find Joe's duck blanket . Blue is high - spirited and believes in making people find things out by themselves instead of being told an answer automatically . Blue was born on a farm with many other puppies . Blue is affectionate, friendly, compassionate, and playful . She can be shy and sometimes mischievous . When she can't explain something by her usual "bow - bow", she makes people find out for themselves, by playing Blue's Clues . Blue's Clues is her favorite game and is always ready to play it . Blue is very sensitive and intelligent, and she can get mad or sad whenever someone does not do what she intended them to do . Fortunately, she doesn't bite when upset, as she is very friendly . She also appears in the spin - off Blue's Room, where she can talk . She first appears in an aired pilot Snack Time though she also appeared in the unaired pilot Blue Prints . Her last appearance in a Blue's Clues episode was in Bluestock . Her first appearance in a Blue's Room episode was in Snacktime Playdate and her final appearance </P> <P> Steve (played by Steve Burns) is the host of Blue's Clues . Steve is Blue's owner and best friend . Steve is always ready to play Blue's Clues and always needs the viewer to help to figure out problems and find clues . Steve likes anything that is green - striped, just like his shirt . Steve went to college on a hopscotch scholarship . He then became the captain of his Junior Varsity Hopscotch Team . He takes an astronomy class, a music class, and an art class . Steve enjoys finding clues when playing Blue's Clues, drawing clues also while playing Blue's Clues, imagining, helping others and discovering new things . He is hilarious, but will most likely forget things . He often needs assistance finding clues from the viewer and is very compassionate . He began getting depressed about not being able to find clues in Blue's Big Musical Movie, but, with the encouragement of the rest of the main characters, finally found the last clue all by himself (a drawer). He also owns a stuffed Anteater named Horace . His first appearance was in the unaired pilot "Blue Prints" and the official pilot "Snack Time". He hosted every episode then until "Steve Goes to College" which is role was taken by Joe . He returned for the special "100th Episode Celebration" and makes a voice cameo in "Blue's First Holiday". He also makes an additional appearance in "Behind the Clues: Ten Years With Blue". After that he made a cameo appearance in the 2009 Disney / Pixar animated film Up and this time was a CGI form . In the scene where Carl's house flies in town while being lifted by balloons, he looks up at it from the building . </P>

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