Cast
Choi Soo-youngLee AhnChoi Soo-young was 27 in Someone You Might Know - Season 1 - Episode 4 (Episode 4).
Birthday: Sat, Feb 10 1990
Lee Won-keunKim Jin-YoungLee Won-keun was 26 in Someone You Might Know - Season 1 - Episode 4 (Episode 4).
Birthday: Thu, Jun 27 1991
Sim Hee-seopKim Jin-YoungSim Hee-seop was 31 in Someone You Might Know - Season 1 - Episode 4 (Episode 4).
Birthday: Wed, Feb 26 1986
Jeon Hye-jinKim Hyo-EunJeon Hye-jin was 29 in Someone You Might Know - Season 1 - Episode 4 (Episode 4).
Birthday: Fri, Jun 17 1988
Jang Sung-kyuAl Soodoissneun SaramJang Sung-kyu was 34 in Someone You Might Know - Season 1 - Episode 4 (Episode 4).
Birthday: Thu, Apr 21 1983