Dennis Quaid is at Dancing with the Stars to support his "Parent Trap" co-star Elaine Hendrix, who is a contestant on the show. He appeared backstage and in the audience to encourage her during a special "Dedication Night" episode, where Hendrix dedicated her dance routine to another "Parent Trap" co-star, Lisa Ann Walter. Quaid was seen giving them support and encouragement, celebrating the reunion of the "Parent Trap" cast members on the show.