Oscar Homolka
as Krull
Ronald Lewis
as Sir Robert Cargrave
Audrey Dalton
as Baroness Maude Sardonicus
Guy Rolfe
as Baron Sardonicus/Marek Toleslawski
Erika Peters
as Elenka Toleslawski
Tina Woodward
as The Girl
Constance Cavendish
as Mrs. Higgins
Mavis Neal
as Head Nurse
Lorna Hanson
as Anna
James Forrest
as Geoffery Wainwright