Guest Stars Louis Mahoney as Guard Moira Redmond as Nicola Tarasova Clifton Jones as Lieut. Labaste Earl Cameron as Darcy Edward Brayshaw as Vernon Brooks Paul Danquah as James Owen Janet Hargreaves as Eirlys Brooks Pearl Prescod as Madame Celeste Margaret Nolan as Mrs. Elliot Errol John as Dessiles Christopher Carlos as Victor N'Dias Joseph Layode as Archivist Robert Dean as David Elliot Boscoe Holder as Nero
