Svengali

Hildegard Knef

As Trilby O'Farrell

Donald Wolfit

As Svengali

Terence Morgan

As Billy Bagot

Derek Bond

As Landlord

Alfie Bass

As Carrell

Noel Purcell

As Patrick O'Farrell

Jeremy Brett

As Pierre

Paul Rogers

As Taffy

David Kossoff

As Gecko

Hubert Gregg

As Durian

Harry Secombe

As Barizel

Peter Illing

As Police Inspector

Joan Haythorne

As Mrs. Bagot

Hugh Cross

As Dubose

David Oxley

As Dodor

Richard Pearson

As Lambert

Toots Pounds

As Mama Martin

Michael Craig

As Zou Zou

Neville Phillips

As Contran

Martin Boddey

As Doctor

Rica Fox

As Dresser

Joan Heal

As Barmaid

Arnold Bell

As Tout

Cyril Smith

As Stage Manager

Marne Maitland

As Stage Manager

Michael Hordern

As Billy's Uncle

Elisabeth Schwarzkopf

As Trilby O'Ferrall (singing voice)