Ethel Barrymore
— Miriam Monroe
William B. Davidson
— John Conrad
Harry Northrup
— Albert Bernard (as Harry S. Northrup)
Frank Currier
— Randolph Monroe
William Black
— Bradford Duncan
Cecil Owen
— Eric Johansen
Frederick Truesdell
— Prof. Poole (as Fred C. Truesdell)
Redfield Clarke
— Maj. Gen. Foster (as Redfield Clark)
Rudolph De Cordova
— Williams
W.M. Armstrong
— Capt. Herbert