Stephen Byrne
Marjorie Byrne
John Byrne
Emily Gaunt
Mrs. Ambrose - Stephen's houseeper
Flora Bantam - John's housekeeper
Mrs. Beach - Stephen's elderly cook
Harry - coroner chairing inquest
D.A.-prosecutor at inquest
Mr. Gaunt
Mrs. Gaunt
Inspector Sarten
Effie Ferguson - Party Guest
Mrs. Whittaker - Party Guest
Miller, bookseller
Walter Herbert, office boy
Coroner's Court Clerk