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