Gong Yo stepped into the role of the mysterious salesman, luring the contestants to participate in the deadly game.
The charming actor makes a special appearance as Kim Go Eun's first love, leaving Gong Yoo's Goblin fuming with jealousy.
The actor brought back his hilarious character, Won Ryu Hwan, a North Korean spy, from the 2013 comedy-drama ‘Secretly, Greatly'
Joong Ki sent Internet into a feral with his surprise cameo as Vincenzo Cassano in the ongoing K-drama, 'Queen of Tears'.
The actor appeared as a customer at Bok Joo's chicken restaurant, managing to cast his charming spell in just a few seconds.
Lee made a cameo as a priest performing an exorcism in the supernatural thriller headlined by his Moon Lovers co-star IU.
Jung Hae in's brief appearance as Sung Deok Sun's former classmate was well-appreciated by viewers.