Pemeran Decibel

Kim Rae Won (김래원)

as Kang Do Yeong

Pemeran Utama

Lee Jong Suk (이종석)

as Jeon Tae Seong

Pemeran Utama

Jung Sang Hoon (정상훈)

as O Dae O

Pemeran Utama

Park Byung Eun (박병은)

as Cha Yeong Han

Pemeran Utama

Lee Sang Hee

as Jang Yu Jeong [Naval E.O.D superior]

Pemeran Pembantu

Jo Dal Hwan

as No Jeong Seop

Pemeran Pembantu

Lee Jong Wook

as Lee Jun Wi [Warrant officer]]

Pemeran Pembantu

Cha Eun Woo (차은우)

as Jeon Tae Ryeong [Naval Submarine acoustic detection officer]

Bintang Tamu

Kim Seul Ki (김슬기)

as Han Mi Nyeo

Bintang Tamu

Lee Min Ki (이민기)

as Hwang Yeong U [Navy captain]

Bintang Tamu

Kang Kyung Hun

as [Superintendent]

Bintang Tamu

Hong Ju Won

as [Navy soldier]

Bintang Tamu

Park Jong Chul

Cinematography

Hong Soo Hee

Costume Designer

Kim Chang Ju

Editor

Park Yeong Shik

Martial Arts Choreographer

Lee Jin Hoon

Screenwriter

Hwang In Ho

Screenwriter & Sutradara

Nam Tae Hoon

as Su Yeong [Reporter #2]

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Han Min Yeop

as Kim Seong Jin [Second lieutenant]

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Han Sang Kyung

as Yeong Man [Safety guard ]

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Shin Yun Ju

as Kang Seol Yeong

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Park Jin Soo

as Kim Dong Hun [Minister of National Defense]

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Kim Jung Woo

as Team Leader Lee

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Na Hyun Woo

as Seong U

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Park Sung Hoon

as Executive Lee

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Woo Ji Hyun

as Kim Yu Taek

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Lee Seung Hoon

as Lieutenant Kim

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Jo Yeon Woo

as Dae U

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Kwon Dong Ho

as Lieutenant Cha

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Choi Mi Ra

as [Captain Hwang's wife]

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Cha Jung Hwan

as [Minister of National Defense's secretary]

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Kim Gun

as [Former investigator / Security agent's voice]

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Yoon Jung Yul

as [Team leader]

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Noh Sung Eun

as [Submarine cook]

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Jung Woo Hyuk

as [Chief of Naval Staff]

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Jang Se Won

as [Engine crew #1]

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Ahn Tae Hwan

as [Engine crew #2]

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Ryu Si An

as [Engine crew #3]

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Seo Woo Jin

as [Crew member #2]

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Lee Han Ju

as [Crew member #3]

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Han Gi Chan

as [Crew member #6]

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Shin Young Chan

as [Crew member #9]

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Kim Dong Hoon

as [Crew member #11]

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Kim Dong Yeon

as [Crew member #12]

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Ryu Philip

as [Crew member #13]

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Jang Yong Hee

as [Crew member #15]

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Lee Young Hoon

as [Crew member #16]

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Han Chang Hyun

as [Agency for Defense Development director]

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Yoon Hyun Gil

as [President of the Football Association's wife]

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Lee Jung Joon

as [Cadet #1]

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Ahn Da Jung

as [Nurse]

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Yun Ki Chang

as [Man opening the window]

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Choi Yoon Bin

as [EOD agent #1]

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Cho Han Gyeol

as [Alert team member #1]

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Shin Chi Young

as [Detective #2]

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Kam Seung Min

as [Consulting doctor]

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Lee Hyun Ah

as [TV broadcast reporter]

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Lee Hwa Young

as [Crewmember 5]

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Kim Jang Won

as [Doctor]

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Jo In Woo

as Jeon Tae Seong #1

Voice Actor

Kim Ye Jin

as [Announcer 1]

Voice Actor

Kim Se Yong

as [Announcer 2]

Voice Actor

Bae Sung Jae

as [Soccer announcer]

Voice Actor