Lee Sung-min
Joo Tae-ju
Kim Seo-hyung
Min Su-hee
Bae Jung-nam
Cho Man-sik
Shin Ha-kyun
Ali (voice)
Kal So-won
Seo-yeon
David Lee McInnis
Dmitri
Yoo In-na
Ming Ming (voice)
Kim Soo-mi
Parrot (voice)
Lee Sun-kyun
Black goat (voice)
Lee Jung-eun
Gorilla (voice)
Lee Soon-jae
Hamster (voice)
Kim Bo-sung
Pug (voice)
Gwag Ja-hyeong
Boar (voice)
Joon Park
Eagle (voice)
Park Yu-mil
Ho-kyung
Lee Soo-kyung
So-jin
Lee Seung-cheol
President
Lee Dong-hee
Zoo director
Nam Gyeong-min
Squad leader
Jason Scott Nelson
Jason