Pipeline

Seo In-guk

Pindol / Kang Sae-dol / Drill-bit

Lee Soo-hyuk

Hwang Geon-woo

Um Mun-suk

Jung Woo-sung / New Bird / Welder

Yoo Seung-mok

Chief Na Choon-shik

Tae Hang-ho

Park Gap-sung / Big Shovel

Bae Yu-ram

Cho Man-sik

Bae Da-bin

Song Eun-joo / Counter

Seo Dong-won

General Dung

Ji Dae-han

Straw

Shin Yoo-ram

White Bear

Shim So-young

Bong-soo's Mother

Cho Young-gil

Detective

Jeong Hyeong-Ho

Intelligence Team Leader

Woo Kang-min

Patrol Team Leader

Moon Chang-jun

Detective