Sinews of Steel is a 1927 American silent drama film directed by Frank O'Connor.
Alberta Vaughn
Helen Blake
Gaston Glass
Robert McNeil Jr.
Anders Randolf
Robert McNeil Sr.
Paul Weigel
Jan Van Der Vetter
Greta von Rue
Elsie Graham
Nora Hayden
Martha Jenkins
Charles Wellesley
Douglas Graham
John H. Gardener
Elmer Price
