- Koo Stark - Miss Scarlett
- Mollie Sugden - Mrs. White
- Richard Wilson - Reverend Green
- Michael Jayston - Colonel Mustard
- Chris Tarrant - Himself - Presenter
- Lysette Anthony - Miss Scarlett
- Tom Baker - Professor Plum
- Christopher Biggins - Reverend Green
- Pam Ferris - Mrs. White
- Susan George - Mrs. Peacock
- John Bird - Professor Plum
- Leslie Grantham - Colonel Mustard
- Jerry Hall - Miss Scarlett
- Joanna Lumley - Mrs. Peacock
- Nicholas Parsons - Reverend Green
- Liz Smith - Mrs. White
- Richard Madeley - Himself - Presenter
- Richard Madeley - Himself
- Lewis Collins - Colonel Mustard
- Lewis Collins - Jack Peacock
- Oliver Tobias - Comte Henri de Beauchamp
- Edward Hardwicke - Himself
- Nanette Newman - Herself
- Nicholas Ball - Mr. Hall
- Anna Carteret - Herself
- Joanna Van Gyseghem - Mrs. Hope
- Paul Darrow - Mr. Hope
- Ned Sherrin - Himself
- Thelma Barlow - Herself
- Nickolas Grace - Peregrine Talbot-Wheeler
- Andrew Sachs - Himself
- Keith Barron - Himself
- Simon Williams - Mr. Chapman
- Barrie Cookson - The Minister
- Edward Fox - Himself
- Joanna David - Herself
- Graham Rigby - Mr. White
- Chris Wright - Constable Jones
- Art Malik - Bernard Kirkbride
- Tony Slattery - Himself
- David Yip - Himself
- Malcolm Stoddard - Simon Charles
- Sally Dynevor - Herself
- Matthew Kelly - Himself
- Michaela Strachan - Herself
- John McArdle - Himself
- Mark Eden - George Biddle
- Frances White - Biddle's Assistant
- Pamela Armstrong - Herself
- George Layton - Himself
- Gaby Roslin - Herself
- Frank Bough - Himself
- Sharon Maughan - Marie Anne Kray
- Guy Scantlebury - Toby Taylor
- Claire Rayner - Herself
- Andrew O'Connor - Himself
- Annabel Giles - Herself
- Gordon Burns - Himself
- Nick Berry - The Window Cleaner
- Carmen Silvera - Herself
- Clement Freud - Himself
- Nina Myskow - Herself
- Chris Packham - Himself
- Amanda Barrie - Herself
- Christopher Guard - Dave
- Jim Bowen - Himself
- Michelle Collins - Herself
- Mike Read - Himself
- Judy Finnigan - Herself
- Keith Chegwin - Himself
- Maggie Philbin - Herself
- Neil Morrissey - Gordon Ferrar
- Johnny Ball - Himself
- Richard O'Brien - Himself
- Valerie Singleton - Herself
- Edwina Currie - Herself
- Ruth Madoc - Miss Terry
- Annabel Croft - Herself
- Dickie Davies - Himself
- Martyn Lewis - Himself
- Lorraine Kelly - Herself
- Andy Crane - Self
David Yip interpreta a Himself en la serie.
Edward Hardwicke hace el papel de Himself.
Richard Madeley interpreta a Himself - Presenter en la serie.
John Bird hace el papel de Professor Plum.
Leslie Grantham interpreta a Colonel Mustard en la serie.
Jerry Hall hace el papel de Miss Scarlett.
Joanna Lumley hace el papel de Mrs. Peacock.
Nicholas Parsons hace el papel de Reverend Green.
Liz Smith interpreta a Mrs. White en la serie.
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