Pemeran Forest

Park Hae Jin

as Kang San Hyuk

Pemeran Utama

Jo Bo Ah (조보아)

as Jung Young Jae

Pemeran Utama

Jung Yeon Joo

as Oh Bo Mi

Pemeran Utama

Noh Kwang Shik

as Choi Chang

Pemeran Utama

Ryu Seung Soo

as Bong Dae Yong [Aviation Rescue Team Leader]

Pemeran Pembantu

Woo Jung Kook

as Ki Pil Young [Aviation Rescue Team]

Pemeran Pembantu

Geum Kwang San

as Yang Chul Shik [Aviation rescue team]

Pemeran Pembantu

Kim Eun Soo

as Kook Soon Tae [Aviation Rescue Team]

Pemeran Pembantu

Ahn Sang Woo

as Park Jin Man [Internal Medicine Doctor]

Pemeran Pembantu

Go Soo Hee

as Nurse Kim

Pemeran Pembantu

Lee Nam Hee

as [Hospital Director]

Pemeran Pembantu

Kim Soo Hyun

as Chairman Jang

Pemeran Pembantu

Jung Soo Kyo

as Han Ji Yong [Head of Investment Division 2]

Pemeran Pembantu

Choi Kwang Il

as Kwon Joo Han [Managing Director, Taesung Group]

Pemeran Pembantu

Kim Young Pil

as Jo Kwang Pil [Team Leader, Taesung Group]

Pemeran Pembantu

Lee Do Kyung

as Choi Jung Mok [President of Miryeong Forestry]

Pemeran Pembantu

Jung Myung Joon

as Shin Joon Young [Psychiatrist]

Pemeran Pembantu

Heo Ji Won

as Cha Jin Woo [Doctor, Young Jae’s ex-boyfriend]

Pemeran Pembantu

Kim Min Seok

as Doctor [Young Jae’s friend]

Pemeran Pembantu

Han Chul Woo

as Son Dong Il [Forestry Department Team Leader]

Pemeran Pembantu

Lee Chang

as Haengwoon Development Rep

Pemeran Pembantu

Lee Go Eun

as Jung Young Jae [Young]

Pemeran Pembantu

Choi Seung Hoon

as Kang San Hyeok (Young)

Pemeran Pembantu

Kwon Ye Eun

as Kang San Yoo [San Hyuk’s sister]

Pemeran Pembantu

Myung Jae Hwan

as Kim Man Soo [Aviation Rescue Team]

Pemeran Pembantu

Lee Si Hoon

as Park Hyun Soo [San Hyuk's Aide]

Pemeran Pembantu

Park Ji Il

as [Young Jae's father]

Pemeran Pembantu

Lim Jung Min

as [Taesung Executive]

Bintang Tamu

Min Joon Hyun

as [Naseong Development Representative] (Ep 4)

Bintang Tamu

Yeo Moo Young

as Yoo Min Sik [Executive Director, Myungsung University Hospital]

Bintang Tamu

Kang Moon Kyung

as Assemblyman Kim (Ep 12)

Bintang Tamu

Kim Geon Ho

as Park Hyeong Shik [ER Crazed father] (Ep 2)

Bintang Tamu

Kim Mi Hye

as [Nurse]

Bintang Tamu

Park Hye Jin

as Soon Hae [San Hyuk’s Grandmother]

Bintang Tamu

Min Kyung Ok

as [Villager]

Bintang Tamu

Park Seung Tae

as [Villager]

Bintang Tamu

Yoo Soon Chul

as Heo Choon Shik [Villager]

Bintang Tamu

Go Jin Myung

as [Villager]

Bintang Tamu

Choi Bum Ho

as Seo Seok Yong [Aviation Rescue Team Commander]

Bintang Tamu

Im Byung Ki

as Chairman Hwang Seok Ho [Haeseong Precision] (Ep.18)

Bintang Tamu

Kwon Hyuk Soo

as Governor Do

Bintang Tamu

Kim Jong Gu

as Chairman Kwon, Taesung Group

Bintang Tamu

Lee Yoon Sang

as Senior Managing Director, Hitech

Bintang Tamu

Park Seong Kyun

as [Prosecutor] (Ep. 32)

Bintang Tamu

Choi Chung Ja

as [Villager]

Bintang Tamu

Song Kyung Eui

as [Coroner] (Ep 15)

Bintang Tamu

Jung Dong Gyu

as [Judge] (Ep 32)

Bintang Tamu

Shin Tae Yang

as [Kid]

Bintang Tamu

Ahn Ryeo Jin

as [Secretary (Ep. 2)

Bintang Tamu

Kim Jin Ho

as [Gangland Boss] (Ep 32)

Bintang Tamu

Lee Joong Yul

as [Hiker] (Ep 15)

Bintang Tamu

Seo Kwang Jae

as Lee Seok Woo [Professor doing Geological Research funded by Taesung] (Ep. 27)

Bintang Tamu

Oh Seung Chan

as [Detective]

Bintang Tamu

In Sung Ho

as Pres. Park Dong Geun [HS Eng] (Ep 30)

Bintang Tamu

Kim Young Jae

as Jung Young Jae's ex-boyfriend (Ep 13)

Bintang Tamu

Kwon Young Min

as Jung Young Jae's ex-boyfriend (Ep 13)

Bintang Tamu

Park Hyun Woo

as [Yeong Jae's ex-boyfriend] (Ep. 13)

Bintang Tamu

Go Man Kyu

as [Taesung Group's Thug]

Bintang Tamu

Jang Joon Ho

as [Young Jae's Senior Professor]

Bintang Tamu

Choi Seong Gwon

Composer

Oh Jong Rok

Sutradara

Lee Sun Young

Screenwriter