Cast of Big
Main cast
Gong Yooas Seo Yoon-jae / Kang Kyung-joon
Lee Min-jungas Gil Da-ran
Suzyas Jang Mari
Jang Hee-jinas Lee Se-young
Shin Won-hoas Kang Kyung-joon
Jang Hyun-sungas Kang Hyuk-soo
Koh Soo-heeas Lee Kyung-mi
Im Ji-eunas Kang Hee-soo
Ahn Suk-hwanas Gil Min-kyu
Baek Sung-hyunas Gil Choong-shik
Shin Ji-sooas Lee Ae-Kyung
Yoon Hae-youngas Lee Jung-Hye
Moon Ji-yoonas Na Hyo-Sang
Choi Ranas Kim Young-Ok
Jo Young-jinas Seo In-Wook
Kim Seo-raas Ahn Hye-Jung
