Lionel Atwill
Sir Austin Howard
The Silent Witness is a 1932 American mystery film directed by Marcel Varnel and starring Lionel Atwill, Greta Nissen, and Helen Mack. It was adapted from a play by Jack DeLeon and Jack Celestin. The film's sets were designed by the art director Duncan Cramer who worked on many Fox Film productions of the era. imdb.com