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