Det. Lt. Dan Muldoon

Barry Fitzgerald

Det. Jimmy Halloran

Don Taylor

Frank Niles

Howard Duff

Ruth Morrison

Dorothy Hart

Captain Donahue

Frank Conroy

Willie Garzah aka Willie the Harmonica

Ted de Corsia

Dr. Lawrence Stoneman

House Jameson

Mrs. Halloran

Anne Sargent

Mrs. Paula Batory

Adelaide Klein

Mr. Batory

Grover Burgess

Detective Perelli

Tom Pedi

Mrs. Edgar Hylton

Enid Markey

Narrator (voice)

Mark Hellinger

Patrolman Albert Hicks (uncredited)

James Gregory

Pater Backalis (Uncredited)

Walter Burke

Little Old Lady (Uncredited)

Jean Adair

Sgt. Dave Miller (uncredited)

David Opatoshu

Dress Shop Proprietor (Uncredited)

Celia Adler

Detective Dace Constantino (uncredited)

John McQuade

Shopgirl (Uncredited)

Joyce Allen

Miss Owens (uncredited)

Hester Sondergaard

Mrs. Stoneman (Uncredited)

Beverly Bayne

Henry Fowler (Uncredited)

Paul Ford

Dr. Hoffman

Ralph Bunker

Harvey (Uncredited)

Harris Brown

Det. Nick (Uncredited)

Curt Conway

Qualen

Kermit Kegley

Detective Fredericks (uncredited)

George Lynn

Policeman (Uncredited)

Alexander Campbell

Shaeffer

Arthur O'Connell

Crippled Girl (Uncredited)

Retta Coleman

Mr. McCormick (uncredited)

Nicholas Joy

Charles Meade (Uncredited)

G. Pat Collins

Martha Swenson (uncredited)

Virginia Mullen

Ambulance Doctor (Uncredited)

Russ Conway

Miss Livingston (Uncredited)

Grace Coppin

Bisbee (Uncredited)

William Cottrell

Man (Uncredited)

Harold Crane

Druggist

Robert Harris

Nurse (Uncredited)

Sarah Cunningham

Publisher

Edwin Jerome

Mr. Stillman (Uncredited)

Johnny Dale

Girl (Uncredited)

Denise Doyle

Shop Girl

Amelia Romano

Ed Garzah

Anthony Rivers

Photographer (Uncredited)

Arthur 'Weegee' Fellig

Wrestler

Bern Hoffman

Jeweler (Uncredited)

Andre D. Foster

Trainer

Elliott Sullivan

Stout Young Woman on an Elevated Train (Uncredited)

Kathleen Freeman

Ticket Taker

Charles P. Thompson

Mrs. Hylton's Maid (Uncredited)

Pearl Gaines

Banker (Uncredited)

Earle Gilbert

Managing Editor (uncredited)

John Marley

Cop at Williamsburg Bridge (uncredited)

Bruce Gordon

Ned Harvey (uncredited)

Joe Kerr

Man (uncredited)

William E. Green

City Editor (uncredited)

Raymond Greenleaf

Clerk

Mervin Williams

Ed Garzah (uncredited)

John Randolph

Cop (uncredited)

Chuck Hamilton

Druggist (uncredited)

Robert H. Harris

Mother (uncredited)

Cavada Humphrey

Halloran's Son

Stevie Harris

Street Cleaner (uncredited)

Percy Helton

Newsboy

Albert Kelley

Publisher (uncredited)

Judson Laire

Old Gentleman

Ralph Simone

Police Photographer (uncredited)

Perc Launders

Nurse (uncredited)

Marion Leeds

Young Man Who Confesses to Dexter Murder (uncredited)

Carl Milletaire

Patrolman (uncredited)

Lee Shumway

Patrolman

Victor Zimmerman

Patrolman

David Kerman

Patrolman

George Sherwood

Mother

Blanche Obronska

Soda-Selling Shopkeeper (uncredited)

Molly Picon

Wrestler

Joseph Karney

Little Girl

Janie Leslie Alexander

Blind Man

Richard Shankland

Child

Mildred Stronger

Child

Carole Sylvester

Child

Clifford Sales

Child

Maureen Latorella

Child

Charles Latorella

Child

Margaret McAndrew

Child

Marsha McClelland

Child

Bobbie Gusehoff

Child

John Joseph Mulligan

Child

Reggie Jouvain

Child

Judith Suzanne Locker

Child

Norma Jane Marlowe

Child

Diana Pat Marlowe

Nehemiah Persoff