Lee Ki-young1st vice-chief Justin John HarveyCrocodile 1 John D. MichaelsDr. Jonas Hilm Jang Young-namMrs. Gwan (Eps 1) Han Seo-woolHostage (Eps 1) Park Hoon-jungDirector / Writer / Executive Producer Cho Hwa-sungProduction Design Park Gyu-beenProduction Design Kim Young-hoDirector Of Photography Yoo Young-giDirector Of Photography Hwang Hyo-kyunSpecial Effects Makeup Artist Lee Hye-ranCostume Design Kwak Tae-yongSpecial Effects Makeup Artist Lee Tae-gyuProduction Sound Mixer Moon Chul-wooSound Supervisor MowgOriginal Music Composer Jung Hyun-juCo-Executive Producer Kim Woo-taekCo-Executive Producer Jang Kyung-ikCo-Executive Producer Jang Min-jaeVisual Effects Kim Jin-gyuVisual Effects Hong Jang-pyoSpecial Effects Supervisor 
