The Unknown Quantity

The Unknown Quantity (1919)

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Cast 6

  1. Corinne Griffith

    Corinne Griffith

    Mary Boyne

  2. Huntley Gordon

    Huntley Gordon

    Dan Kinsolving

  3. Harry Davenport

    Harry Davenport

    Septimus Kinsolving

  4. Jack McLean

    Jack McLean

    Sammy Boyne

  5. Jack Ridgeway

    Thomas Boyne

  6. F.R. Buckley

    Peter Kenwitz

Crew 3

Directing

  1.

    Thomas R. Mills

    Director

Writing

  1. O. Henry

    O. Henry

    Story

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