
"TOLD WITH THE SNARL OF A MACHINE GUN!"
Frank Warren is a treasury agent assigned to put an end to the activities of a powerful mob crime boss. Frank works undercover, posing as a criminal to seek information, but is frustrated when all he finds are terrified witnesses and corrupt police officers.
Frank Warren

Judith Warren

George Pappas

Attorney Edward J. O'Rourke

Inspector Herzog

Joseph S. Horan

Police Desk Sergeant Shannon

Sidney Gordon

Rosa Rocco
Maria Rocco

Theresa Rocco

Salvatore Rocco

Emanuel 'Manny' Zanger

Gladys LaVerne

Muriel Gordon

Stanley Weinburg

Bailiff
Johnny (uncredited)

Grocer / Bookie
Parker's Secretary

Alice Ferguson
Michael Cisney
Plainclothesman (uncredited)
Hoodlum
District Attorney

Policeman
Harris
Court Clerk
Mrs. Weisner

Onlooker at Murder Scene (uncredited)

Judge Allen F. Parker (uncredited)

Hoodlum (uncredited)
Joseph Clark - Hoodlum (uncredited)
Passerby

Coroner's Office Phone Clerk
Newsreel Announcer
Narrator (voice) (uncredited)

Hoodlum (uncredited)

Malibu Policeman

Policeman
Malibu Policeman
Hoodlum
Newsboy (uncredited)

Hoodlum

Unknown Role
Policeman
Horse Parlor Manager

Jury Foreman

Unknown Role
Vendor

Unknown Role
Horse Parlor Bouncer (uncredited)
Policeman
Policeman
Unknown Role
Rocco Tenement Resident
Unknown Role
Unknown Role

Gunman
Hoodlum
Man Departing Train

Unknown Role
Man in Movie Audience

Plainclothesman

Gambler
Hoodlum
Federal Agent Guarding Witnesses (uncredited)

Druggist
Cigar-Store Owner / Bookie

Big Man

Mrs. O'Rourke (uncredited)

Hoodlum

Cabbie

Unknown Role