Peter S. Fischer Creator Richard Levinson Creator William Link Creator Angela Lansbury Jessica Fletcher Actor Richard Johnson Lord Geoffrey Constable Guest Star Christopher Hewett Humphrey Defoe Guest Star Mark Lindsay Chapman Johnny Constable Guest Star Carolyn Seymour Pauline Constable Guest Star John Standing Arthur Constable Guest Star Rosemary Murphy Sybil Constable Guest Star Jane Leeves Gwen Petrie Guest Star John David Bland Derek Constable Guest Star Anthony Newley Insp. Frost Guest Star Ian Abercrombie Dr. Blandings Guest Star Tom Bosley Sheriff Amos Tupper Actor Ernest Borgnine Cosmo Panzini Guest Star Robert F. O'Neill Producer Walter Grauman Director