The Unknown Quantity (1919)

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Below is the list of the 6 actors that worked in The Unknown Quantity. When you find the person you are looking for, click on the link to view a list of actors they have worked with.

Corinne Griffith as Mary Boyne

Huntley Gordon as Dan Kinsolving

Harry Davenport as Septimus Kinsolving

Jack Ridgeway as Thomas Boyne

Frederick Buckley as Peter Kenwitz

Jack McLean as Sammy Boyne

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