Pemeran Perfect Number

Lee Yo Won

as Hwa Sun

Pemeran Utama

Ryu Seung Beom

as Suk Go

Pemeran Utama

Jo Jin Woong

as Cho Min Beom

Pemeran Utama

Kim Yoon Sung

as Sang Joon

Pemeran Pembantu

Kim Bo Ra

as Yoon Ah

Pemeran Pembantu

Lee Seok Jun

as Nam Tae Woo

Pemeran Pembantu

Im Sung Min

as Jung Sook

Pemeran Pembantu

Kwak Min Ho

as Kim Chul Min

Pemeran Pembantu

Kwon Hae Hyo

as [Team leader]

Pemeran Pembantu

Nam Moon Chul

as [Section Chief]

Pemeran Pembantu

Kim Joo Ryoung

as [Madame]

Pemeran Pembantu

Myung Gye Nam

as [Motel owner]

Bintang Tamu

Song Young Chang

as [Lie detector operator]

Bintang Tamu

Lee Hwang Ui

as [Homeless person]

Bintang Tamu

Yang Hong Sam

Art Director

Choi Chan Min

Cinematography

Bang Eun Jin

Sutradara

Higashino Keigo

Original Creator

Lee Seung Yeop

Production Sound Mixer

Lee Kong Joo

Screenwriter

Kim Tae Yoon

Screenwriter & Sutradara

Nam Yeon Woo

as [Investigation team #2]

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Park Hyung Soo

as [Investigation team #1]

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Kim Ah Ron

as [Girl]

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Chae Young In

as [Diving master]

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Park Jung Pyo

as [Emergency Room Doctor]

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Baek Seung Do

as [Suk Go's classmate 1]

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Kim Ga Eun

as [Seok Go's class president]

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Kim Chang Hoe

as Min Bum [High school student]

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Choi Young Woo

as [Forensic team member #1]

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Kim Eun Kyung

as [Emergency room nurse]

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Lee Seung Hun

as [CSU officer 2]

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