Mathieu Leblanc

She reprised the role of Elsa for the Infinity video games back in 2013 along with Kristen Bell, Mandy Moore, Kevin R McNally and Bill Nighby. The voice of Jack Sparrow , Mike Wazowski and Buzz Lightyear are also the ones from the Infinity series. As for Mandy Moore, she has returned for the TV show and various stage shows at the Disney parks so no doubt she will return for KH3