Character Name : Jeong Tae-hoon

Original Name : 김상경

Gender : Male

Character Name : Han Young-ju

Original Name : 이선빈

Gender : Female

Character Name : Seo Woo-sik

Original Name : 윤경호

Gender : Male

Character Name : Han Gil-ju

Original Name : 서영희

Gender : Female

Character Name : President Cho

Original Name : 장혁진

Gender : Male

Character Name : Han Hyun-jong

Original Name : 김정태

Gender : Male

Character Name : Jeong Kyung-han

Original Name : 송영규

Gender : Male

Character Name : In-ho

Original Name : 이지훈

Gender : Male

Character Name : Soon-im

Original Name : 성병숙

Gender : Female

Character Name : Jung Min-woo

Original Name : 김하언

Gender : Male

Character Name : Ministry of Health and Welfare

Original Name : Kim Kyung-sik

Gender : Male

Character Name : O2 Staff

Original Name : Kim Dong-hwan

Gender : Male

Character Name :

Original Name : Brad Curtin

Gender : Male