Guest Stars Angela Lansbury as Emma MacGill Jane Leeves as Gwen Petrie Carolyn Seymour as Pauline Constable Richard Johnson as Lord Geoffrey Constable John Standing as Arthur Constable John David Bland as Derek Constable Mark Lindsay Chapman as Johnny Constable Christopher Hewett as Humphrey Defoe Rosemary Murphy as Sybil Constable Anthony Newley as Inspector Frost Co Starring Pamela Kosh as Mrs. Dexter-Hundley Ian Abercrombie as Dr. Blandings Lester C. Fletcher as Reverend Twilley Peter Ashton as Burt D.J. Sullivan as Pru Peter Browne as Butler