Sherlock Holmes in Washington Oyuncuları

Yönetmen	Roy William Neill
Senarist	Bertram Millhauser
Oyuncu
Basil Rathbone Sherlock Holmes
Nigel Bruce Doctor Watson
Marjorie Lord Nancy Partridge
Henry Daniell William Easter
George Zucco Heinrich Hinckel aka Richard Stanley
John Archer Naval Lt. Pete Merriam
Gavin Muir Mr. Lang, government agent
Edmund MacDonald Detective Lt. Grogan
Don Terry Howe
Mary Gordon Mrs. Hudson
Bradley Page Cady
Clarence Muse George
Mary Forbes Mrs. Pettibone
Holmes Herbert Mr. Ahrens
Thurston Hall Sen. Henry Babcock
Ian Wolfe Antiques Store Sales Clerk
John Burton Army Inspector (uncredited)
Gerald Hamer Alfred Pettibone
Gilbert Emery Sir Henry Marchmont (uncredited)
Margaret Seddon Miss Pringle (uncredited)
Mary Field Party Pianist (uncredited)
Colin Kenny Hotel Doorman (uncredited)
Caroline Frances Cooke Mrs. Ruxton
Lillian Bronson
Eddie Coke
Kernan Cripps
Leslie Denison
Dan Dowling
Alice Fleming
Leyland Hodgson
Alexander Lockwood
Charles Marsh
Thomas Martin
Charles Meakin
Irving Mitchell
Gene O'Donnell
Jason Robards Sr.
Paul Scott
Bernard Sell
Lee Shumway
Regina Wallace
Phil Warren
Frederick Worlock
Müzik
Frank Skinner , Charles Previn
Editör
Otto Ludwig
Sanat Yönetimi
Jack Otterson , Martin Obzina , Edward R. Robinson
Set Dekorasyon
Russell A. Gausman
Kostüm Tasarımı
Vera West
Yapımcı
Roy William Neill
Karakter
Arthur Conan Doyle
Özgün Hikaye
Bertram Millhauser
Yardımcı Yönetmen
William Tummel
Görüntü Yönetmeni
Lester White
Ortak Yapımcı
Howard Benedict
Ses
Bernard B. Brown , James Masterson
Diğer
Tom McKnight
Senaryo
Bertram Millhauser , Lynn Riggs
Genel
Roy William Neill , Bertram Millhauser , Lynn Riggs , Arthur Conan Doyle , Howard Benedict , Frank Skinner , Lester White , Otto Ludwig , Jack Otterson , Russell A. Gausman , Vera West , William Tummel , Eugene Joseff