Top Cast
Dermot Walsh
Guy Thornton
Hazel Court
Margaret Thornton
Joss Ambler
Yacht Port Manager
Hugh Burden
Dr. Fawcett
Mignon O'Doherty
Mrs. Manley
Hugh Latimer
Peter
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Joan Carol
Mrs. Martineau
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John Robinson
Prof. Martineau / Mansel
Joss Ackland
Ron, 2nd Fisherman
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John King-Kelly
Sid, 3rd Fisherman
