Murder Ahoy! is the last of four Miss Marple films made by Metro-Goldwyn-Mayer that starred Margaret Rutherford. As in the previous three, the actress plays Agatha Christie's amateur sleuth Miss Jane Marple, with Charles 'Bud' Tingwell as (Chief) Inspector Craddock and Stringer Davis (Rutherford's real-life husband) playing Mr Stringer.