Archie Mayo
J. Grubb Alexander
Barney McGill
David Mendoza
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)
CinemaSerf
John Barrymore is super as the eponymous mystic composer who entrances "Trilby" (Marian Marsh) after she comes to his studio with a desire to be a star; and a tendency to have headaches. Soon his avarice is evident as he ruthlessly exploits his charge (despite/because of his unrequited love for her)...
Warner Bros. Pictures
The Vitaphone Corporation