Guy Bates Post
— Omar the tentmaker
Virginia Brown Faire
— Shireen
Nigel De Brulier
— Nizam ul Mulk
Noah Beery
— The shah of shahs
Rose Dione
— Shah's mother
Patsy Ruth Miller
— Little Shireen
Douglas Gerrard
— Hassan
Will Jim Hatton
— Little Mahruss
Boris Karloff
— Imam Mowaffak
Maurice 'Lefty' Flynn
— The Christian Crusader (as Maurice B. Flynn)
Edward Kimball
— Omar's father (as Edward M. Kimball)
Walter Long
— The executioner
Evelyn Selbie
— Zarah
John Gribner
— Mahruss
Gordon Mullen
— Emissary to the Shah
George Regas
— Emissary to the Shah (as George Rigas)
Nick Shaid
— Arab Guard in Shireen's Garden (uncredited)