Catherine O'Hara and Dr. Phil Are in the Hot Seat THURSDAY MAY 14

Catherine O'Hara and Dr. Phil Are in the Hot Seat THURSDAY MAY 14

Catherine O'Hara continues her winning streak in support of Upward Bound House, and Dr. Phil plays "Millionaire" in support of his charity When Georgia Smiled on an all-new episode of "Who Wants To Be A Millionaire," airing THURSDAY, MAY 14 8|7c. Episodes can be viewed the next day on demand and on ABC and Hulu.

See which of your favorite celebrities will be in the Hot Seat during the celebrity-filled prime-time event!

For the first time in the history of the U.S. franchise, celebrities playing on "Millionaire" can invite a guest to help them answer questions. It could be a relative, a beloved teacher or a famed trivia expert – anyone they want – to help them win as much money as they can for the charity of their choice. Additionally, this special run of shows will be introducing a new lifeline, Ask the Host, and a revolutionary, live, play-along app which will allow America to compete to win the same amount of money that celebrities are playing for on the show.

RELATED: Download the "Millionaire Live" play-along app for your chance to win cash prizes!

"Who Wants To Be A Millionaire" is executive produced by Michael Davies, Jimmy Kimmel and Mike Richards. The series is produced by Sony Pictures Television's Embassy Row, Kimmelot and Valleycrest Productions Ltd.