Gavin Lee and Steffanie Leigh, who are currently starring in Broadway's Mary Poppins, will be contestants on the December 19 episode of ABC's Who Wants to Be a Millionaire, hosted by Meredith Vieira. They will be appearing during Broadway Giveaway Week.

The performers will play as a two-person team and will donate their winnings to The Actors Fund, a national human services organization that helps professionals in performing arts and entertainment in times of need, crisis or transition. The duo is guaranteed to win a minimum of $5,000 for charity.

For tickets and more information on the Broadway production of Mary Poppins, click here.