Guest Stars Kwon Yoo-joon as Masked Front Man Stand-in Jeon Young Soo voices Game Guide Kim Byung Chul as Instructions Guard Lee Seo Hwan as Park Jung Bae Im Ki Hong as Jung Min-tae Park Hye Jin as Sang Woo's Mother Kim Young Ok as Gi-hun's Mother Jo Ah In as Sung Ga Young Park Si Wan as Kang Chul Choi Jae Seop as Park Man Cheol Yoon Seung Hoon as Park Ju-un Yoon Don Sun as No Sang-hun Yang Mal Bok as Player 453 Kang Mal Geum as Ga-yeong's Mother Hyun Jin as Player 209 Min Tae Yul as Player 271 Won Choon Gyu as Player 066 Kim Young Sun as Gi-hun's Friend's Wife Lee Choong Goo as Gang Member Anwesha Purkayastha as Ali's Wife Go Chang Hee as Filipino Gangster Seon In Ho as Police Detective Lee Jae Sung as Gangster Yang Hyung Taek as Drunk Go Chang Hee as Hassan Song Hyung Soo as Doctor Pyo Dong Joon as Ga-yeong's Brother Jang Jae Kwon as Ga-yeong's Stepfather So Yun Ho as Detective Kim Sung Gon as Detective Kim Kye Sun as Dormitory Owner Kim Min Shik as Kim Jin Woo Park Jung Eon as Player 073 Joon Hyun Sook as Fish Shop Customer Kim Seo Ha as Factory Owner Lee Dong Yong as Kim Sang Hyuk
