Gruesome

Boris Karloff

Dick Tracy

Ralph Byrd

Tess Trueheart

Anne Gwynne

Dr. L.E. Thal

Edward Ashley

Pat Patton

Lyle Latell

Dr. I.M. Learned

June Clayworth

Melody

Tony Barrett

Dr. A. Tomic

Milton Parsons

X-Ray

Skelton Knaggs

Dan Sterne

Jim Nolan

Chief Brandon

Joseph Crehan

City Hospital Driver (uncredited)

Lex Barker

Waiter at Hangman's Knot

Ernie Adams

Sneezing Bank Customer

Phil Arnold

Detective in Car (uncredited)

Lee Phelps

Bar Patron

Walter Bacon

Officer Carney (uncredited)

Sean McClory

Humphrey

Harry Harvey

Bank Customer

Eddie Borden

Tim

Harry Strang

Sergeant

Robert Bray

"Pop"

William Gould

Owner of the Hangman's Knot

George Lloyd

Fred (Police Analyst) (uncredited)

Robert Clarke

Bank Officer (uncredited)

Jason Robards Sr.

Stone (Bank Teller) (uncredited)

George Cooper

Blonde Bank Customer (uncredited)

Suzi Crandall

Luke - Police Stooge

Ben Hall

Humphrey, a guard

Harry Harvey, Jr.

Dr. Frankey

Tom Keene

Doctor (uncredited)

Robert Malcolm

Crandall (uncredited)

Bert Roach

Bela Lugosi

Morgan Conway

Police Driver in Montage

Lew Meehan

Anne Jeffreys

Police Sgt. in Montage

Bruce Mitchell

Insolvent Borrower

Lorin Raker

Policeman

Tex Swan