Mark Alexander Ballas Jr. is an American dancer, choreographer, singer-songwriter, musician, and actor.

Julianne Alexandra Hough is an American dancer, actress and television personality. In 2007, she joined the cast of ABC's Dancing with the Stars as a professional dancer, winning two seasons with her celebrity partners. After leaving the show in 2009, she returned in 2014 to serve as a permanent judge on Dancing with the Stars, a position she held until 2017. She received three Primetime Emmy Award nominations for her work on the series, winning once in 2015 with her brother, Derek Hough.