Mary Brian. Mary Brian was 28 in Monte Carlo Nights as 'Mary Vernon'.
John Darrow. John Darrow was 26 in Monte Carlo Nights as 'Larry Sturgis'.
Yola d'Avril. Yola d'Avril was 27 in Monte Carlo Nights as 'Madelon'.
Astrid Allwyn. Astrid Allwyn was 28 in Monte Carlo Nights as 'Blondie Roberts'.
George 'Gabby' Hayes. George 'Gabby' Hayes was 49 in Monte Carlo Nights as 'Inspector Nick Gunby'.
Robert Frazer. Robert Frazer was 42 in Monte Carlo Nights as 'Jim Daggett'.
Carl Stockdale. Carl Stockdale was 60 in Monte Carlo Nights as 'Charles Brandon'.
Billie Van Every. Billie Van Every was >> in Monte Carlo Nights as 'Mazie'.
George Cleveland. George Cleveland was 48 in Monte Carlo Nights as 'Croupier'.
William Nigh. William Nigh was 52 in Monte Carlo Nights as 'Director'Norman Houston. Norman Houston was 46 in Monte Carlo Nights as 'Screenplay'Paul Malvern. Paul Malvern was 31 in Monte Carlo Nights as 'Producer'
Yakima Canutt. Yakima Canutt was 38 in Monte Carlo Nights as 'Stunts'