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