로드 넘버원

So Ji-sub

— Lee Jang-woo

김하늘

— Kim Soo-yeon

Choi Min-soo

— Yoon Sam-soo

윤계상

— Shin Tae-ho

손창민

— Oh Jong-ki

Kim Jin-woo

— Kim Soo-hyuk

Nam Bo-ra

— Kim Soo-hee

줄리엔 강

— U.S. Marine Corps Platoon Leader

한예리

— Jo In-sook

Noh Young-hak

— Heo Chan-shik

송재희

— Yang Kang-tae

Kim You-jung

— young Soo-yeon

Lee Jin-seong

— Jo In-je

최불암

— older Tae-ho

정소영

— Caméo

황보라

— Girl from Jong Ki's hometown

민복기

— Park Dal Moon