Composer
Director
Screenwriter
Main Role
- Kim Young Kwang Main Role
- Jin Ki Joo Main Role
- Kim Jae Kyung Main Role
- Koo Ja Sung Main Role
Support Role
- Jung Ae RiShim Hae Ra [Min Ik's mother]Support Role
- Kim Min SangShim Hae Young [CEO of T&T Mobile / Min Ik's uncle]Support Role
- Jang So YeonLee Eul Wang [Head of secretaries]Support Role
- Baek Hyun JooPark Seon Ja [Veronica's mother]Support Role
- Kwon So HyunHa Ri Ra [Secretary]Support Role
- Son SanGoo Myung Jung [Secretary]Support Role
- Han Ji SunMo Ha Ni [Hae Young's secretary]Support Role
- Choi Tae HwanEun Jung Soo [Min Ik's driver / Assailant]Support Role
- Kim Byung ChunGoo Seok Chan [Min Ik's physician]Support Role
- Kim Ji MinJung Nam Hee [Gal Hee's younger sister]Support Role
- Choi Yoon RaBoo Se Yeong [Secretary]Support Role
- Kim Hee JungKo Si Rae [Gal Hui's mother] (Ep. 1, 4, 21-24, 28, 31-32)Support Role
- Seo Dong WonJung Joong Hee [Gal Hee's big brother]Support Role
- Lee Seung HyungDirector Park [T&T Mobile]Support Role
- Kim Kyung RyongDirector Lee [T&T Mobile]Support Role
- Kwon Hong SeokKim Oh Chan [Director at T&T Mobile]Support Role
- Jo Jae RyongUhm Han Il [Police officer]Support Role
- Song Jin WooWoo Doo Han [Police officer]Support Role
Guest Role
- Kim Ki DooGoo Seok Chan (Ep.2)Guest Role
- Lee Moon ShikGoo Seok Chan (Ep.2)Guest Role
- Kim Jung SeokKoo Seok Chan (Ep. 2)Guest Role
- Kim Kwang Gyu[Interviewer] (Ep.3)Guest Role
- Bae Hae SeonDr. Park [Neurologist]Guest Role
- Woo Hyun[Man sleeping in sauna] (Ep.16)Guest Role
- Choi Jung WooDo Wan Bae [Min Ik's father] (Ep.25)Guest Role
- Lee Joo WonKi Dae Joo [Young]Guest Role
- Jang Eui Don[Passerby #2]Guest Role
- Choi Moon KyungKim Sun MiGuest Role
- Oh Young Shil[Cleaner]Guest Role
- Jo Yi HyunDo Min Ik [Young]Guest Role
- Park Shi WanJung Joong Hee [Young]Guest Role
- Kim Sun YoolJung Nam Hee [Young]Guest Role
- Jo Si Yeon Guest Role
- Bae Yu Ra[Assistant director]Guest Role
Bit part
- Stella Jang[Singer]Bit part
Unknown
- Lee Seung Joon Unknown
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