Jack Ryland

Narrator

Riley Jackson

Sportscaster / Crowd Leader

Tetsurō Tamba

Dr. Nishiyama

Matthew Oram

Dr. Nishiyama (voice) / Botanist (voice)

由美かおる

Mariko Nishiyama

Linda Masson

Mariko Nishiyama (voice)

黒沢年雄

Akira Nakagawa

Barry Haigh

Akira Nakagawa (voice) / Zoologist (voice)

志村喬

Hospital Director

Tony Moore

Hospital Director (voice)