Nancy Drew and the Hidden Staircase

Bonita Granville

Nancy Drew

Frankie Thomas

Ted Nickerson

John Litel

Carson Drew

Frank Orth

Captain Tweedy

Renie Riano

Effie Schneider

Vera Lewis

Rosemary Turnbull

Louise Carter

Floretta Turnbull

William Gould

Daniel Talbert

George Guhl

Smitty

John Ridgely

Reporter

William Hopper

Reporter

Creighton Hale

Reporter

Frank Mayo

Tribune Photographer

Frederic Tozere

District Attorney's Investigator

Don Rowan

Phillips

Dick Elliott

McKeever

Sin foto

Fern Barry

McKeever's Secretary (uncredited)

Nat Carr

Policeman (uncredited)

Sol Gorss

Reporters' Driver (uncredited)

Sin foto

Frank Meredith

Motorcycle Policeman (uncredited)

Jack Mower

Ice Company Dispatcher (uncredited)

Sin foto

Terry Nibert

Turnbull's Kitchen Maid (uncredited)

Paul Panzer

Reporter (uncredited)

Eddie Parker

Motorcycle Policeman (uncredited)

Bob Reeves

Cop (uncredited)

John J. Richardson

Reporter (uncredited)

Sin foto

Cliff Saum

Burt the Iceman (uncredited)

Sin foto

Joanne Tree

Teen (uncredited)

Sin foto

Jack Wise

Second Photographer (uncredited)