The Mouthpiece

Vincent 'Vince' Day

Celia Farraday

Miss Hickey, Day's Secretary

Mr. Barton

Elaine

J.B. Roscoe

E.A. Smith

Bartender

Tony Rocco

District Attorney Forbes

Mr. Pondapolis

Thompson, Day's Butler

Miss DeVere

John 'Johnny' Morris

Robert Wilson (Uncredited)

Joe Garland (Uncredited)

Gladys (Uncredited)

Rocco Trial Judge (Uncredited)

Detective Arresting Garland (Uncredited)

Office Worker (Uncredited)

Crying Prospective Client (Uncredited)

Chinese Waiter (Uncredited)

Platinum Blonde at Party (Uncredited)

Cab Driver (Uncredited)

The Gardener-Murderer (Uncredited)

Maitre d' (Uncredited)

Hotel Desk Clerk (Uncredited)

Prison Clerk (Uncredited)

One of J.B.'s Henchmen (Uncredited)

One of J.B.'s Henchmen (Uncredited)