Seo In-guk

as Pindol / Kang Sae-dol / Drill-bit

Lee Soo-hyuk

as Hwang Geon-woo

Um Mun-suk

as Jung Woo-sung / New Bird / Welder

Yoo Seung-mok

as Chief Na Choon-shik

Tae Hang-ho

as Park Gap-sung / Big Shovel

Bae Yu-ram

as Cho Man-sik

Bae Da-bin

as Song Eun-joo / Counter

Seo Dong-won

as General Dung

Ji Dae-han

as Straw

Shin Yoo-ram

as White Bear

Shim So-young

as Bong-soo's Mother

Cho Young-gil

as Detective

Jeong Hyeong-Ho

as Intelligence Team Leader

Woo Kang-min

as Patrol Team Leader

Moon Chang-jun

as Detective

Kim Jung-pal

as Chief

Lee Young-suk

as Chairman Hwang