•
Edmund Burns as Terence O'Brien •
Blanche Mehaffey as Sheila O'Toole •
Ethel Clayton as Mrs. O'Brien •
Lou Tellegen as Prince Anton Balakrieff •
Babe London as Princess Sonia Alexandernova Karpoff •
Will Walling as Mr. O'Brien (credited as Will R. Walling) •
Charles McHugh as Pa O'Toole •
Aggie Herring as Ma O'Toole •
Charles Crockett as Whiskers •
Robert Homans as McCoy • Harry A. Bailey as Cohen (credited as Harry Bailey) • Sidney D'Albrook as Tony •
Broderick O'Farrell as Immigration Officer •
Boris Karloff as Pavel ==Preservation==