Norma ShearerNorma Shearer was 26 in The Trial of Mary Dugan as 'Mary Elizabeth Dugan'.
Lewis StoneLewis Stone was 49 in The Trial of Mary Dugan as 'Edward West'.
H.B. WarnerH.B. Warner was 53 in The Trial of Mary Dugan as 'District Attorney Galway'.
Raymond HackettRaymond Hackett was 26 in The Trial of Mary Dugan as 'Jimmy Dugan'.
Lilyan TashmanLilyan Tashman was 32 in The Trial of Mary Dugan as 'Dagmar Lorne'.
Olive TellOlive Tell was 34 in The Trial of Mary Dugan as 'Mrs. Gertrude Rice'.
Adrienne D'AmbricourtAdrienne D'Ambricourt was 51 in The Trial of Mary Dugan as 'Marie Ducrot'.
DeWitt JenningsDeWitt Jennings was 57 in The Trial of Mary Dugan as 'Inspector Hunt'.
Wilfrid NorthWilfrid North was 66 in The Trial of Mary Dugan as 'Judge Nash'.
Landers StevensLanders Stevens was 52 in The Trial of Mary Dugan as 'Dr. Welcome'.
Mary DoranMary Doran was 18 in The Trial of Mary Dugan as 'Pauline Agguerro'.
Westcott ClarkeWestcott Clarke was 42 in The Trial of Mary Dugan as 'Captain Price'.
Bayard VeillerBayard Veiller was 60 in The Trial of Mary Dugan as 'Director, Screenplay'William H. DanielsWilliam H. Daniels was 27 in The Trial of Mary Dugan as 'Director of Photography'Becky GardinerBecky Gardiner was 43 in The Trial of Mary Dugan as 'Writer'
Irving ThalbergIrving Thalberg was 30 in The Trial of Mary Dugan as 'Producer'Blanche SewellBlanche Sewell was 30 in The Trial of Mary Dugan as 'Editor'
Cedric GibbonsCedric Gibbons was 36 in The Trial of Mary Dugan as 'Art Direction'
AdrianAdrian was 26 in The Trial of Mary Dugan as 'Costume Design'