<Li> Sarah Silverman as Vanellope von Schweetz, a racer / glitch in Sugar Rush who turned out to be its lost princess . </Li> <Li> Jack McBrayer as Fix - It Felix Jr., a repairman who is the hero of Fix - It Felix Jr., as well as the husband of Sergeant Calhoun . </Li> <Li> Jane Lynch as Sergeant Tamora Jean Calhoun, the lead character of Hero's Duty and Fix - It Felix Jr.'s wife . </Li> <Li> Taraji P. Henson as Yesss, an algorithm that determines the trending videos on BuzzTube . </Li>

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