Sergei Kurilov

as Nicholas Miklouho-Maclay

Galina Grigoryeva

as Margaret Robertson - wife of Miklouho-Maclay

Mikhail Astangov

as Brandler - Doctor

Aleksey Maksimov

as Robertson

Georgiy Budarov

as Thomson

Valentina Kuindzhi

as Lawrence

Weyland Rodd Sr.

as Chief Oor - black friend Miklouho-Maclay

Lev Fenin

as Governor