- Dolores Costello
- Marie / Miriam
- George O'Brien
- Travis / Japheth
- Noah Beery
- Nickoloff / King Nephilim
- Louise Fazenda
- Hilda / Tavern Maid
- Guinn 'Big Boy' Williams
- Al / Ham (as Gwynn Williams)
- Paul McAllister
- Minister / Noah
- Myrna Loy
- Dancer / Slave Girl
- Anders Randolf
- The German / Leader of Soldiers
- Armand Kaliz
- The Frenchman / Leader of the King's Guard
- William V. Mong
- Innkeeper / Guard
- Malcolm Waite
- The Balkan / Shem
- Nigel De Brulier
- Soldier / High Priest
- Noble Johnson
- Slave Broker
- Otto Hoffman
- Investor with Gun / Trader
- Ward Bond
- Flood Extra
- Joe Bonomo
- Aide to Leader of Soldiers
- Allan Cavan
- Stockbroker
- Andy Devine
- Flood Extra
- Gus Leonard
- Manager of Belgian Theater Troup
- Alphonse Martell
- French Policeman
- Torben Meyer
- Man on Train
- Nina Quartero
- French Girl
- Cliff Saum
- Soldier in Trench
- Martin Sperzel
- (uncredited)
- John Wayne
- Flood Extra
