Celebrity guests are split into two teams to compete in various contests. One guest, known only to himself, is designated the "X-Man", and does his best to cause his team to lose the contests. At the end, all guests try to determine the X-Man's identity.
Lee Hyuk-jae
MC/Team Leader
Yoo Jae-suk
Main MC
Kang Ho-dong
MC/Team Leader
Gong Hyung-jin
MC/Team Leader
Park Kyeong-rim
MC/Team Leader
Kim Je-dong
MC/Team Leader
Haha
Self
Park Myung-soo
Self
Chae Yeon
Self
The Graham Norton Show72%
Comedy Bang! Bang!62%
The Tonight Show Starring Jimmy Fallon58%
Late Show with David Letterman64%
Space Ghost Coast to Coast78%
The Mitchell and Webb Situation78%
The Dick Cavett Show68%
QI79%
Nick Cannon Presents: Wild 'N Out80%
One on One78%
Key & Peele76%
Rowan & Martin's Laugh-In67%
The Tonight Show Starring Johnny Carson75%
Tyler Perry's House of Payne75%
Carpool Karaoke: The Series61%
Love, American Style62%
Drunk History68%
French & Saunders74%
A Bit of Fry & Laurie79%
Good Mythical Morning69%
