James Lance

as Narrator (voice)

Katharine Milton

as Herself - Primatologist

Bryson Voirin

as Himself - Wildlife Biologist

Leonor Álvarez Cansino

as Herself - Tropical Forest Ecologist

Lars Markesteijn

as Himself - Tropical Forest Ecologist

Natalie Clay

as Herself - Entomologist

Angie Estrada

as Herself - Conservation Biologist

Ben Hirsch

as Himself - Behavioural Ecologist