a co-production of Mammoth Screen and Masterpiece in association with ITV Studios ; written and devised by Russell Lewis ; produced by Tom Mullens ; directed by Sandra Goldbacher, Bryn Higgins, Lawrence Gough, Olly Blackburn
by Margery Allingham ; screenplay by Jill Hyem ; directed by Robert Chetwyn ; a BBC Television production ; in association with Consolidated Productions ; produced by Ken Riddington
dramatised by T.R. Bowen ; directed by Martyn Friend ; a BBC TV production ; in association with the Arts and Entertainment Network, U.S.A. and the Seven Network, Australia ; produced by George Gallaccio
by Margery Allingham ; screenplay by Jeremy Paul ; directed by Ronald Wilson ; a BBC Television production ; in association with Consolidated Productions ; produced by Ken Riddington