In the Diplomatic Service
movie

Released October 16, 1916
Overview
Foreign powers keep getting their hands on U.S. military secrets, so the head of the American diplomatic corps calls in his nephew Dick Stansbury to help. Stansbury knows that Doctor Montell is at the bottom of this, so he poses as an inventor of an innovative aerial gun. This sparks the doctor's interest, and when they both attend a weekend party at the Ryerson estate, Montell tries to get Stansbury to sell the gun to his country.
Cast

Francis X. Bushman
as
Dick Stansbury

Beverly Bayne
as
Beverly Ryerson

Helen Dunbar
as
Mrs. Ryerson

Henri Bergman
as
Dr. Montell
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Belle Bruce
as
Helen Wardlow
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Edmund Elton
as
Major Blaine
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Mrs. La Roche
as
Mrs. Blaine

William B. Davidson
as
Lynn Hardi

Charles Fang
as
Chinese Valet
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Harry Blakemore
as
Butler
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Liza Miller
as
Mammy