as Constance Dane Roberti

as Franz Roberti

as Johnny Lawrence

as Professor Thalma

as Marx

as Miss Wilson

as Sylvia DeWitt

as Enrico Pazzini

as Elise

as Schubert

as Didi Smith-Lennox

as Lady Phyllis Cameron

as Albert Henderson (uncredited)

as Messenger (uncredited)

as Man in Hotel (uncredited)

as Max - Florist (uncredited)

as Radio Announcer (uncredited)

as Mr. Lubin (uncredited)

as Bill (uncredited)

as Song Promoter at Music Publisher (uncredited)

as Ritz Headwaiter (uncredited)

as Party Guest / Theatergoer (uncredited)

as New Year's Eve Celebrant (uncredited)

as Concertgoer (uncredited)

as Violin Student's Mother (uncredited)

as New Year's Eve Celebrant (uncredited)

as Ticket-Seller (uncredited)

as Bierbauer (uncredited)

as (uncredited)

as New Year's Eve Celebrant (uncredited)

as Bassoonist (uncredited)

as Ticket Purchaser (uncredited)

as Stagehand (uncredited)

as Concertgoer (uncredited)

as (uncredited)