The Diamond Runners (1916)

Helen Holmes

as Helen

Paul Hurst

as Paul - the Brains of the I.D.B.

Leo D. Maloney

as Inspector Hudson - Secret Service

Thomas G. Lingham

as Sir Thomas Holstead

K

Katherine Goodrich

as Lady Holstead

W

William Brunton

as Hon. Fortesque Holstead

C

Charles Wells

as Inspector Harrington - Secret Service