John Barrymore

Svengali

Marian Marsh

Trilby O'Farrell

Donald Crisp

The Laird

Bramwell Fletcher

Billee

Carmel Myers

Madame Honorine

Luis Alberni

Gecko

Lumsden Hare

Monsieur Taffy

Paul Porcasi

Bonelli

Ferike Boros

Marta (uncredited)

Adrienne D'Ambricourt

Mme. Vinard (uncredited)

Yola d'Avril

Maid (uncredited)

Rose Dione

Trilby's Mother (uncredited)