Mary BrianMary Brian was 28 in Monte Carlo Nights as 'Mary Vernon'.
John DarrowJohn Darrow was 26 in Monte Carlo Nights as 'Larry Sturgis'.
Yola d'AvrilYola d'Avril was 27 in Monte Carlo Nights as 'Madelon'.
Astrid AllwynAstrid Allwyn was 28 in Monte Carlo Nights as 'Blondie Roberts'.
George 'Gabby' HayesGeorge 'Gabby' Hayes was 49 in Monte Carlo Nights as 'Inspector Nick Gunby'.
Robert FrazerRobert Frazer was 42 in Monte Carlo Nights as 'Jim Daggett'.
Carl StockdaleCarl Stockdale was 60 in Monte Carlo Nights as 'Charles Brandon'.
George ClevelandGeorge Cleveland was 48 in Monte Carlo Nights as 'Croupier'.
William NighWilliam Nigh was 52 in Monte Carlo Nights as 'Director'
Norman HoustonNorman Houston was 46 in Monte Carlo Nights as 'Screenplay'Paul MalvernPaul Malvern was 31 in Monte Carlo Nights as 'Producer'
Yakima CanuttYakima Canutt was 38 in Monte Carlo Nights as 'Stunts'