Ed Devereaux
as Matt Hammond
Tony Bonner
as Jerry King
Ken James
as Mark Hammond
Garry Pankhurst
as Sonny Hammond
Skippy
the Bush Kangaroo
Liza Goddard
as "Clancy" Merrick
Elke Neidhart
as Dr Anna Steiner
Frank Thring
as Doctor Stark
John Warwick
as Dr. Adrian Gillespie
-
Hector
the Emu