叶童

Cecilia Yip

吴孟达

Man Tat Ng

夏雨

Yu Xia

胡可

Ke Hu

简·霍洛克斯

Jane Horrocks

饰：Self - Narrator,

Steve Unwin

饰：Self - Vet

James Chatterton

饰：Self - Resident Vet

Niall Ormerod

饰：Self - Specialist Keeper, Primates

Alan Woodward

饰：Self - Head Keeper, Carnivores