Robert Winston

饰：自己

Marva Alexander

Marva Alexander

饰：Various hominids

Christian Bradley

饰：Various hominids

亚历克斯·帕尔墨

Alex Palmer

饰：Various hominids

David Rubin

饰：Various hominids

亚历克·鲍德温

Alec Baldwin

饰：Narrator (US version)

Rachel Essex

Rachel Essex

饰：Various hominids

Oliver Parham

饰：Various hominids

Florence Sparham

Florence Sparham

饰：Various hominids