Series Cast

Kang Ha-neul
Kim Yo-han
Lee You-young
Oh Soo-yeon
Heo Sung-tae
Yoon Byung-wook
Kim Sang-ho
Mok Jin-hyung
Kang Young-suk
Jang Seon-oh
Park Seong-geun
Hong Sang-wook
Kang Shin-hyo
Hong Jae-seon
Jeong Man-sik
Yang Hwa
Kim Si-eun
Park Ro-sa
Sung Ji-ru
Heo Sang-soo
Cha Yeob
Kim Gil-sang
Yoon Byung-hee
Kim Woo-sang
Lee Dong-won
[Seongju Prison inmate #1321]
Moon Sung-keun
Do Won Bong [Seongju Prison inmate]
Heo Dong-won
Yang Jun ['Skin Nation' chairman]
Choi Dae-hoon
No Seung Hwan / Nam Dae Moon [Seongju Prison inmate]
Han Jae-yeong
Jo Hae Do [Bukyeongpa gang]
Kim Ji-na
Jin Soo Min [Director / 'Skin Nation' accountant]
Oh Tae-kyung
Woo Sang Ki [Goldman Casino's accountant / Min Ho's father]
Choi Moo-seong
Song Doo Cheol [Bukyeongpa gang]
Han Kyu-won
Eom Ik Soo [Bukyeongpa gang]
Jo Hee-bong
Ryu Tae Hoon [Seongju Prison inmate]
Lee Ha-yul
Kim Woo Jae [Prosecutor]
Kim Min-seung
Woo Min Ho [Sang Ki's son]
Yoo Ha-bok
Kim Jung Gyu [Prosecutor]
Kim Byung-cheol
[Sinseondong elder]
Seo Myung-chan
[Sinseondong elder]
Lee Yang-hee
[Sinseondong elder]
Jeong Hwee Wook
Kwon Dae Il [Police]
Moon Jong-won
Kim Sung Bum [Seongju Prison staff]
Park Joong-geun
Park [Seongju Prison guard]
Kim Kyu-baek
[Seongju Prison inmate #1369]
Hwang Dae-woong
[Seongju Prison inmate #8934]
Kim Wang Do
[Seongju Prison inmate #7721]

Current Season

Season 1

2022 | 16 Episodes

Season 1 of Insider premiered on Jun 09 2022

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Review 1Discussion

A review by ParkMin

Written by ParkMin on Mon Mar 04 2024

It started with a lousy introduction and a decent premise that was simple on paper and then began to jump between one plot after another until the end. There was a desperate need for a better coherent structure and pacing. The plot got overly convoluted for no practical reason. Up until the end, it kept introducing more and more new characters to widen the connection and keep the story running in circles. The characters were more or less fine but a lot of them came off in the form of a generic gangster in a Korean thriller. I appreciate not shoving romance between the leads, it would've been ou...