Ben Lyon

Monte Rutledge

James Hall

Roy Rutledge

Jean Harlow

Helen

John Darrow

Karl Armstedt

Lucien Prival

Baron Von Kranz

Frank Clarke

Lt. von Bruen

Douglas Gilmore

Capt. Redfield

Jane Winton

Baroness Von Kranz

Evelyn Hall

Lady Randolph

William B. Davidson

Staff Major

Wyndham Standing

RFC Squadron Commander

Lena Malena

Gretchen the Waitress

Marian Marsh

Girl Selling Kisses

Carl von Haartman

Zeppelin Commander

Ferdinand Schumann-Heink

First Officer of Zeppelin

Thomas Carr

Pilot

Nora Cecil

Helen's Maid (uncredited)

Lawford Davidson

British Officer Shot by Firing Squad (uncredited)

Lucy Doraine

Bit Role (uncredited)

Pat Harmon

Recruiting Sergeant (uncredited)