Sharon TateSharon Tate would have been no older than 26 in Twelve Plus One as 'Pat'.
Vittorio GassmanVittorio Gassman was 47 in Twelve Plus One as 'Mario Beretti'.
Orson WellesOrson Welles was 54 in Twelve Plus One as 'Markan'.
Vittorio De SicaVittorio De Sica was 68 in Twelve Plus One as 'Di Seta'.
Terry-ThomasTerry-Thomas was 58 in Twelve Plus One as 'Albert'.
Mylène DemongeotMylène Demongeot was 34 in Twelve Plus One as 'Judy'.
William RushtonWilliam Rushton was 32 in Twelve Plus One as 'Bennet'.
Tim Brooke-TaylorTim Brooke-Taylor was 29 in Twelve Plus One as 'Jackie'.
John SteinerJohn Steiner was 28 in Twelve Plus One as 'Stanley'.
Lionel JeffriesLionel Jeffries was 43 in Twelve Plus One as 'Randomhouse'.
Mara CarisiMara Carisi was 50 in Twelve Plus One as 'Wardrobe Mistress (uncredited)'.
Nicolas GessnerNicolas Gessner was 38 in Twelve Plus One as 'Director, Screenplay'
Giuseppe RuzzoliniGiuseppe Ruzzolini was >> in Twelve Plus One as 'Director of Photography'
Antonio AltovitiAntonio Altoviti was >> in Twelve Plus One as 'Screenplay'Lucia Drudi DembyLucia Drudi Demby was >> in Twelve Plus One as 'Screenplay'Giancarlo CappelliGiancarlo Cappelli was 57 in Twelve Plus One as 'Editor'Maurice RootesMaurice Rootes was 52 in Twelve Plus One as 'Editor'
Stelvio CiprianiStelvio Cipriani was 32 in Twelve Plus One as 'Original Music Composer'
Carlo RustichelliCarlo Rustichelli was 52 in Twelve Plus One as 'Original Music Composer'
Ilya IlfIlya Ilf would have been no older than 39 in Twelve Plus One as 'Novel'Piero PolettoPiero Poletto was >> in Twelve Plus One as 'Production Design'
Yevgeni PetrovYevgeni Petrov would have been no older than 38 in Twelve Plus One as 'Novel'Franco CarrettiFranco Carretti was >> in Twelve Plus One as 'Costume Design'
Ottavia Piccolo
Denis Norden