- William Boyd
- Sergeant Bill Thatcher
- James Gleason
- Private Jim Mobley
- Lew Cody
- Lew Cavanaugh
- Zasu Pitts
- 'Mlle' Fritzi Mobley
- Marion Shilling
- Ina
- Russell Gleason
- Russell 'Bud'
- Lissy Arna
- Katherina
- Mary Carr
- Bud's Mother
- Fred Scott
- Fred
- Theodore von Eltz
- Major Sparks
- Frank Reicher
- German Military Hospital Chief
- Max Barwyn
- German Doctor
- Wade Boteler
- Undetermined Role
- Ed Brady
- Sergeant
- E.H. Calvert
- Commanding Officer
- Eddy Chandler
- Lieutenant
- Charles Coleman
- Sparrow
- Ethan Laidlaw
- Soldier in Prelude
- Purnell Pratt
- Undetermined Role
- Hedwiga Reicher
- German Nurse
