John Barrymore
Svengali
Marian Marsh
Trilby O'Farrell
Donald Crisp
The Laird
Bramwell Fletcher
Billee
Carmel Myers
Madame Honori
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)