Special Guest Stars Gong Yoo as The Salesman Guest Stars Lee Byung Hun as Front Man Kwon Yoo-joon as Masked Front Man Stand-in Jeon Young Soo voices Game Guide Kim Byung Chul as Instructions Guard Park Hye Jin as Sang Woo's Mother Im Ki Hong as Jung Min-tae Lee Seo Hwan as Park Jung Bae Kim Young Ok as Gi-hun's Mother Yoon Seung Hoon as Park Ju-un Yoon Don Sun as No Sang-hun Jo Ah In as Sung Ga Young Kang Mal Geum as Ga-yeong's Mother Kim Bup Rae as Mr. Kim Hwang Jae Hoon as Mr. Kim's Subordinate #3 Choi Yoon Bin as Mr. Kim's Subordinate #2 Hong Woo Jin as Oh Yeong-uk Park Ji Hoon as Player 250 Lee Han Sol as Player 324 Kim Yeon Jun as Squid Game Kid #1 Park Ji On as Squid Game Kid #6 Jung Woo Jin as Squid Game Kid #5 Go Eun Cheon as Horse Racing Caster Park Jeong Won as Squid Game Kid #3 Kwak Soo Hyun as Squid Game Kid #2 Yoon Hee Yong as Jigsaw Man Oh Kyung Min as Big Man Jeong Min Gyu as Lottery Room Kid Yang Mi Seon as Player 306 Jo Kyung Jae as Squid Game Kid #4 Park Sun Ah as Kim Mi-ok Wie Ji Yun as Teller Ha Sun-young Kim Yun Woong as Young Gi-hun Park Si Won as Young Sang-woo Kim Kyung Min as Gambler in Waiting Line
