Sarah Kate Silverman is an American stand-up comedian, actress, producer, and writer who voiced Vanellope von Schweetz in the 2012 Disney animated film Wreck-It Ralph and the 2013 video game Disney INFINITY and will reprise her role for Ralph Breaks the Internet: Wreck-It Ralph 2. She also made a cameo as a waitress in the 2011 Disney film The Muppets.