Donald Cook was an American stage and film actor who had a prolific career in pre-Code Hollywood films and on Broadway. Cook is perhaps best known for his film roles in The Public Enemy (1931), Safe in Hell (1931), Baby Face (1933), and Viva Villa! (1934), as well as for his stage role as David Naughton in Claudia, which ran for a total of 722 performances on Broadway between 1941 and 1943. He was the first actor to play Ellery Queen.

The Casino Murder Case is a 1935 American mystery film starring Paul Lukas and Alison Skipworth. Rosalind Russell is in the supporting cast. It was directed by Edwin L. Marin from a screenplay by Florence Ryerson and Edgar Allan Woolf, based on the 1934 novel of the same name by S. S. Van Dine. It was the ninth film in the Philo Vance film series.