Darsteller und CrewLeslie NielsenNarratorHarpo MarxHimself (archive footage)Groucho MarxHimself (archive footage)Chico MarxHimself (archive footage)Irving BrecherHimselfBill MarxHimselfJohn GuedelHimselfMaxine MarxHerselfGeorge FennemanHimselfJohn ScheinfeldRegisseur:in