Suzanna Leigh as Vicki Robbins

Frank Finlay as H.W. Manfred

Guy Doleman as Ralph Hargrove

Catherine Finn as Mary Hargrove

John Harvey as Thompson

Michael Ripper as David Hawkins

Anthony Bailey as Compere

Tim Barrett as Harcourt

James Cossins as Coroner

Frank Forsyth as Doctor

Katy Wild as Doris

Greta Farrer as Sister

Gina Gianelli as Secretary

Michael Gwynn as Doctor Lang

Alistair Williamson as Inspector

Ronnie Wood as Member of the Byrds

Maurice Good as Agent