<Ul> <Li> John C. Reilly as Wreck - It Ralph, a large brute who is the villain of the fictional arcade game Fix - It Felix Jr . </Li> <Li> Sarah Silverman as Vanellope von Schweetz, a racer / glitch in Sugar Rush . </Li> <Li> Jack McBrayer as Fix - It Felix Jr., a repairman who is the hero of Fix - It Felix Jr . </Li> <Li> Jane Lynch as Sergeant Tamora Jean Calhoun, the lead character of Hero's Duty . </Li> <Li> Alan Tudyk as King Candy, the ruler of Sugar Rush . King Candy's vocal stylings are based on comedian Ed Wynn, and his physical mannerisms are modeled from Wynn's Mad Hatter character in Alice in Wonderland . </Li> <Li> Mindy Kaling as Taffyta Muttonfudge, a racer in Sugar Rush . </Li> <Li> Joe Lo Truglio as Markowski, a soldier from Hero's Duty that Ralph meets in Tapper . </Li> <Li> Ed O'Neill as Mr. Stan Litwak, owner of Litwak's Family Fun Center & Arcade . </Li> <Li> Dennis Haysbert as General Hologram, a holographic general in Hero's Duty . </Li> <Li> Adam Carolla as Wynnchel, a Long John who is a member of the Sugar Rush police department . </Li> <Li> Horatio Sanz as Duncan, a doughnut who is a member of the Sugar Rush police department . </Li> <Li> Rich Moore as Sour Bill, King Candy's sour ball henchman . </Li> </Ul> <Li> John C. Reilly as Wreck - It Ralph, a large brute who is the villain of the fictional arcade game Fix - It Felix Jr . </Li> <Li> Sarah Silverman as Vanellope von Schweetz, a racer / glitch in Sugar Rush . </Li> <Li> Jack McBrayer as Fix - It Felix Jr., a repairman who is the hero of Fix - It Felix Jr . </Li>

Who does the voice of vanellope in wreck it ralph