Character Name : Sam Spade

Original Name : Ricardo Cortez

Gender : Male

Character Name : Ruth Wonderly

Original Name : Bebe Daniels

Gender : Female

Character Name : Casper Gutman

Original Name : Dudley Digges

Gender : Male

Character Name : Effie Perrine

Original Name : Una Merkel

Gender : Female

Character Name : Police Lt. Dundy

Original Name : Robert Elliott

Gender : Male

Character Name : Iva Archer

Original Name : Thelma Todd

Gender : Female

Character Name : Dr. Joel Cairo

Original Name : Otto Matieson

Gender : Male

Character Name : Miles Archer

Original Name : Walter Long

Gender : Male

Character Name : Wilmer Cook

Original Name : Dwight Frye

Gender : Male

Character Name : Det. Sgt. Tom Polhaus

Original Name : J. Farrell MacDonald

Gender : Male

Character Name : Capt. John Jacobi (uncredited)

Original Name : Agostino Borgato

Gender : Male

Character Name : District Attorney (uncredited)

Original Name : Morgan Wallace

Gender : Male

Character Name : Sarah the Prison Matron (uncredited)

Original Name : Lucille Ward

Gender : Female