Robert Powell

Gustav Mahler

Georgina Hale

Alma Mahler

Lee Montague

Bernhard Mahler

Miriam Karlin

Aunt Rosa

Rosalie Crutchley

Marie Mahler

Richard Morant

Max

Angela Down

Justine Mahler

Ronald Pickup

Nick

Peter Eyre

Otto Mahler

Dana Gillespie

Anna von Mildenburg

David Collings

Hugo Wolfe

Kenneth Colley

Krenek

Antonia Ellis

Cosima Wagner

Oliver Reed

Train Conductor

Andrew Faulds

Doctor on Train

George Coulouris

Doctor Roth

Arnold Yarrow

Grandfather

Elaine Delmar

Princess

Otto Diamant

Professor Sladky

Berwick Kaler

Dancing Officer at Mahler's Cremation (uncredited)