Check is one of the secondary characters in the story. Being successful in his career as a world famous director, story writer, actor and musician he’s always in high demand but is very relaxed and carefree when he’s not doing any work. Throughout the story he supports Hoshi and his friends by using his position as a celebrity. He act's mischievous, energetic and is just a party animal who acts fabulous all the time but has a serious side when he's working. He does say a few dirty comments a few times as well. He doesn't have a squeaky high pitched voice as you would expect from a mouse either.  An English/British accent for the character would be preferred but if you think there's another voice you can do for the character you can include that in your audition.