Officer Pat O'Hara

Grant Withers

Officer Sam Maloney

Adrian Morris

Molly Selkirk

Kay Hughes

Pinky Adams

Mickey Rentschler

Irish

Silver Wolf

W.H. Harrison

Gordon Hart

Mr. Tahata, alias Warner the Great

Frank Lackteen

Mr. Wellington

C. Montague Shaw

John P. Adams, inventor

Harry Davenport

Stevens, gang chemist

Wheeler Oakman

Harry Selkirk

Max Hoffman Jr.

Desk Sergeant

Jack Mulhall

Jeremiah Crockett

Earl Dwire

Franklin, the real Tahata

Leonard Lord

Henchman Zutta

Dick Botiller

Henchman / Off-screen Trainer of Silver Wolf

Louis Vokali

Hobo

Ernie Adams

Casey

Hooper Atchley

Plant Foreman

Stanley Blystone

Charlie

Rychard Cramer

Charlie

Richard Cramer

Intern

Jack Gardner

Blake

Pat Gleason

1925 Police Chief

William Gould

Hobo Finding Suitcase

Al Herman

Pollard Henchman

Carey Loftin

Eddie Lewis

Tom London

James Pollard

Monte Montague

Hobo-Henchman

Charles Murphy

Police Dispatcher / Steel Mill Worker

Eddie Parker

The Chef

Henry Roquemore

Inspector Clark

William Royle

Police Car 27 Driver

Tom Steele

Flynn

Frank Sully

Perkins

Ray Teal

Henchman

Harry Tenbrook

Henchman

Jim Toney

Pollard's Secretary

Florence Wright