David Main (45 episodes, 1969-1975)
Margaret Castleton (34 episodes, 1969-1975)
Henry Castleton (33 episodes, 1969-1975)
Sarah Courtney / Lady Sarah Radchester / Lady Radchester (21 episodes, 1969-1972)
Walter Clegg / Len Smith (20 episodes, 1970-1975)
Sidney Bulmer (13 episodes, 1969-1970)
Peter Findon (12 episodes, 1969-1975)
Hilary Nash / Hilary Main (9 episodes, 1972)
Inge Lindstrom / Inge Belbin (7 episodes, 1975)
Laura Granton (6 episodes, 1975)
Andrew Retford / Robert Gordon (5 episodes, 1972-1975)
Priscilla Graves (4 episodes, 1969)
Julia Main (4 episodes, 1969)
Stephen Howard (4 episodes, 1975)
Det. Ch. Supt. Guthrie / Det. Chief Insp. Guthrie / Det. Chief Supt. Guthrie / Det. Sup. Guthrie (4 episodes, 1969-1970)
Lord Arkwright / Joseph Elvin (3 episodes, 1970-1975)
Harry Selby / Charles Arkwright (3 episodes, 1970-1972)
Edward Ransome / William Trehearne (3 episodes, 1972-1975)
Patrick Bell / George Dyson (3 episodes, 1970-1975)
Peter Jarratt (3 episodes, 1975)
Simon Rimsey / Stanton (3 episodes, 1972-1975)
Main's Secretary / David Main's Secretary (1 episode, 1972)
Edie Semple (2 episodes, 1970)
Charles Ian Grady / Tom Kelly (2 episodes, 1969-1972)
Hugh Neville / Kenneth Manmer (2 episodes, 1970-1975)
Ian Mathews / Mark Freedler (2 episodes, 1970-1972)
Col. Charles Everett / Sam Thornaby (2 episodes, 1972-1975)
Arthur Litchfield / George Cutforth (2 episodes, 1969-1972)
James Renshaw / Sir Stephen Kirwin (2 episodes, 1972-1975)
Buckley / Edward Bellingham (2 episodes, 1972-1975)
Allan Hartmann (2 episodes, 1975)
Braintree / Lawrence Wingrove (2 episodes, 1970-1972)
Anthony Gibbs-Revill / Tony Murray (2 episodes, 1970-1975)
Reginald Harris / Richard Nash (2 episodes, 1970-1972)
Inspector Bertram / Smith (2 episodes, 1972-1975)
Derrick Asher / Harry Turner (2 episodes, 1969-1970)
Swiss Judge / William Pirbright (2 episodes, 1972-1975)
Rufus Mansfield (2 episodes, 1975)
Gilbert Fletcher / Raymond Berry (2 episodes, 1969-1970)
Tim Cowley (2 episodes, 1969)
Lily / Mrs. Cullen (2 episodes, 1970-1972)
Peter Redman / Roger Chapman (2 episodes, 1969-1975)
Chief Supt. Griffin / Mr. Justice Fairburn (2 episodes, 1970-1975)
Anthony Markson / Magistrate (2 episodes, 1970-1975)
Harris / Simon Tredgarth (2 episodes, 1970-1972)
Joe Farrell / Michael Coburn (2 episodes, 1972-1975)
Edward Stainer / Judge (2 episodes, 1970-1972)
Chairman of Magistrates / Welborn (2 episodes, 1972-1975)
Barrister / Inspector (2 episodes, 1969-1972)
Frederick (2 episodes, 1969)
Det. Sgt. Abbott / Tobias Wheeler (2 episodes, 1969-1970)
Householder / Salesman (1 episode, 1969-1972)
Mrs. Hilary Wenn (1 episode, 1970)
Roger Lamb (1 episode, 1970)
Richard Swanson (1 episode, 1970)
Lord Radchester (1 episode, 1972)
Det. Insp. Lampeter (1 episode, 1972)
Sefton Gardiner (1 episode, 1972)
George Wilkinson (1 episode, 1969)
Raul Ramira (1 episode, 1969)
Olivia Marrett-Browne (1 episode, 1969)
Jeremy Upjohn (1 episode, 1970)
Lord Bennett (1 episode, 1970)
Maj. Michael Gardiner (1 episode, 1972)
Magistrate (1 episode, 1972)
Lewis Savage (1 episode, 1972)
Derek Adams (1 episode, 1972)
Joe Holroyd (1 episode, 1975)
Montero (1 episode, 1969)
Donald Gordon Hopwood (1 episode, 1970)
Mrs. Elliott (1 episode, 1970)
Arnold Foster (1 episode, 1970)
Abdul Naji (1 episode, 1970)
Gina Gordon (1 episode, 1972)
Lt. Col. Brant (1 episode, 1972)
Sandy McGoggie (1 episode, 1972)
Malcolm Evans (1 episode, 1972)
Joyce Adams (1 episode, 1972)
Analyst (1 episode, 1975)
Liz (1 episode, 1975)
Denise Clegg (1 episode, 1975)
Magnus Tait (1 episode, 1975)
Charles Benoit (1 episode, 1969)
Professor Ian Allardyce (1 episode, 1970)
Dr. Lowton (1 episode, 1970)
Mrs. Clifford (1 episode, 1970)
Susan Crawford (1 episode, 1970)
Acting Supt. Grover (1 episode, 1970)
Arnold Bingley (1 episode, 1970)
Allan Whittaker (1 episode, 1970)
Meriel Manmer (1 episode, 1970)
Fiona Kelly (1 episode, 1972)
Brigadier (1 episode, 1972)
George Cleveland (1 episode, 1972)
Frank Gerrard (1 episode, 1972)
Mary McGoggie (1 episode, 1972)
Tony Evans (1 episode, 1972)
George Fisher (1 episode, 1975)
Harry Kenton (1 episode, 1975)
Philip Betton (1 episode, 1975)
Det. Insp. Shannon (1 episode, 1975)
Arthur Wainright (1 episode, 1975)
Sir James Darren (1 episode, 1975)
Annie Selby-Wilson (1 episode, 1975)
Elbert Cheever (1 episode, 1969)
Ruth Paxton (1 episode, 1969)
Rosa (1 episode, 1969)
Bridges (1 episode, 1970)
Mr. Jory (1 episode, 1970)
Johnny Stewart (1 episode, 1970)
Alec Grafton (1 episode, 1970)
Mary Allardyce (1 episode, 1970)
Edward Main (1 episode, 1970)
Jack Gillam (1 episode, 1970)
Harvey Lingwood (1 episode, 1970)
Frederick Owen (1 episode, 1972)
Joey Richards (1 episode, 1972)
Mary Wingrove (1 episode, 1972)
Warren Iveson (1 episode, 1972)
Michael Kelly (1 episode, 1972)
Carol Gerrard (1 episode, 1972)
Judge Belling (1 episode, 1972)
Mary Walton (1 episode, 1972)
Tony (1 episode, 1972)
Alison Murray (1 episode, 1975)
George Duncan (1 episode, 1975)
Donald Jarram (1 episode, 1975)
Richard Darren (1 episode, 1975)
Sir Martin Fulford (1 episode, 1975)
Edward Pendlebury (1 episode, 1975)
William Eversley (1 episode, 1975)
George Hargrave (1 episode, 1969)
Ernest Paxton (1 episode, 1969)
Mary Cooper (1 episode, 1969)
Alice Greensmith (1 episode, 1969)
Gil Vasey (1 episode, 1970)
Judge (1 episode, 1970)
Joe Brown (1 episode, 1970)
Ursula Findon (1 episode, 1970)
Dr. John Grafton (1 episode, 1970)
Janet Harrison (1 episode, 1970)
Sir George More-Litton (1 episode, 1970)
Mrs. Donnell (1 episode, 1970)
Magistrate - Tom Withers (1 episode, 1970)
George Auckland (1 episode, 1970)
Denny (1 episode, 1972)
Ernest Leggatt (1 episode, 1972)
Mr. Page (1 episode, 1972)
Sir Charles Braithwaite (1 episode, 1972)
William Arkwright (1 episode, 1972)
Peter McWilliam (1 episode, 1972)
Adjutant (1 episode, 1972)
Robert Douglas (1 episode, 1975)
Gerry Baxter (1 episode, 1975)
Mrs Brockford (1 episode, 1975)
Harry Selby (1 episode, 1975)
Brian Ford (1 episode, 1975)
Byrne (1 episode, 1975)
Godfrey Allen (1 episode, 1969)
James Earnshaw (1 episode, 1969)
Mort Harper (1 episode, 1969)
Cooper (1 episode, 1969)
Otto Zobel (1 episode, 1970)
Agnes McLaren (1 episode, 1970)
James Harding (1 episode, 1970)
George Langden (1 episode, 1970)
Twite (1 episode, 1970)
Henrietta Carson (1 episode, 1970)
Stella Brown (1 episode, 1970)
Eileen Donnell (1 episode, 1970)
Major Donovan (1 episode, 1972)
Sammy Cutforth (1 episode, 1972)
Sir George Andrews (1 episode, 1972)
Ian Osborn Utley (1 episode, 1972)
Hilda Walker (1 episode, 1972)
Arthur Conway (1 episode, 1972)
Joe Meadows (1 episode, 1972)
Mrs. Roach (1 episode, 1972)
Arnold Henderson (1 episode, 1972)
Judge (1 episode, 1972)
Amanda Retford (1 episode, 1975)
Roy Wilson Gibbard (1 episode, 1975)
Joseph Shelton (1 episode, 1975)
Paul Miller (1 episode, 1975)
James Cosgrove (1 episode, 1975)
Rachel Baxter (1 episode, 1975)
Sammy Dayton (1 episode, 1975)
George Allen (1 episode, 1975)
Linda Mason (1 episode, 1975)
Mr Brockford (1 episode, 1975)
The Hon. Fiona Cowley (1 episode, 1969)
Charles Arkwright (1 episode, 1969)
Ian Stewart (1 episode, 1969)
Sanches (1 episode, 1969)
Sheila Smith (1 episode, 1970)
Manuel Patino (1 episode, 1970)
Reginald Crowther (1 episode, 1970)
Charlie Webster (1 episode, 1970)
Doran (1 episode, 1970)
Charles Wainwright (1 episode, 1970)
Det. Sgt. Ransome (1 episode, 1970)
Stipendiary Magistrate (1 episode, 1970)
Magistrate (1 episode, 1970)
Waiter (1 episode, 1970)
Staff Sergeant Timson (1 episode, 1972)
Jeremy Purcell-Browne (1 episode, 1972)
Dr. Milner (1 episode, 1972)
Edward J. Brown (1 episode, 1972)
Lady Annabel Andrews (1 episode, 1972)
Mrs. Gadley (1 episode, 1972)
Crump (1 episode, 1972)
Peter Gregg-Bowen (1 episode, 1972)
Peter Cutforth (1 episode, 1972)
Jacobson (1 episode, 1975)
Sammy Beddowes (1 episode, 1975)
Eric Anderson (1 episode, 1975)
Dr. Fenway (1 episode, 1975)
Yorkie (1 episode, 1975)
Lord Chief Justice (1 episode, 1975)
George Matthews (1 episode, 1975)
Percy Roper (1 episode, 1975)
Receptionist (1 episode, 1975)
Terry (1 episode, 1975)
George Bristow (1 episode, 1969)
George Seager (1 episode, 1969)
Richard Pryce-Hartley (1 episode, 1969)
Prison Cook (1 episode, 1969)
Anthony Arkwright (1 episode, 1969)
Ministry Inspector (1 episode, 1970)
Lady Magistrate (1 episode, 1970)
Carlo Patino (1 episode, 1970)
Stacey (1 episode, 1970)
John Howard (1 episode, 1970)
Receptionist (1 episode, 1970)
George Halloran (1 episode, 1972)
Private Pike (1 episode, 1972)
Sam Bradshaw (1 episode, 1972)
Det. Con. Rigg (1 episode, 1972)
Neville Carson (1 episode, 1972)
Joe Marshall (1 episode, 1972)
Les Parfitt (1 episode, 1972)
Robert Varney (1 episode, 1972)
Arnold Galbraith (1 episode, 1975)
High Court Judge (1 episode, 1975)
Tribunal Chairman (1 episode, 1975)
Mrs. Fenway (1 episode, 1975)
Executive Officer (1 episode, 1975)
Crown Court Judge (1 episode, 1975)
Keith (1 episode, 1975)
Joe Philips, Site Foreman (1 episode, 1969)
John Smith (1 episode, 1969)
Judge (1 episode, 1969)
Oliver Griffiths (1 episode, 1969)
Porter (1 episode, 1969)
Julian Webb (1 episode, 1970)
Mr. Fisher (1 episode, 1970)
Crispin (1 episode, 1970)
Coroner (1 episode, 1970)
Mrs. Ada Harrington (1 episode, 1970)
Warrant Officer (1 episode, 1970)
Baby Brian (1 episode, 1970)
Chairman of Magistrates (1 episode, 1972)
James Galbraith (1 episode, 1972)
William Shelton (1 episode, 1972)
Kellaway (1 episode, 1972)
Morton (1 episode, 1972)
Roger Lockhart (1 episode, 1975)
Terry Barrett (1 episode, 1975)
Towers (1 episode, 1975)
Robert Jordan (1 episode, 1975)
Det. Sgt. Ray Allington (1 episode, 1975)
Juvenile Court Chairman (1 episode, 1975)
Removal Foreman (1 episode, 1975)
County Court Judge (1 episode, 1969)
Mr. Griffiths (1 episode, 1970)
Sgt. Purdie (1 episode, 1972)
Ticket Collector (1 episode, 1972)
Keir McGoggie (1 episode, 1972)
Edward Moss (1 episode, 1972)
Judge (1 episode, 1975)
Winifred Tindell (1 episode, 1975)
Coroner (1 episode, 1975)
Prosecuting Barrister (1 episode, 1975)
John Paulton (1 episode, 1975)
Usher (1 episode, 1975)
George Mynter (1 episode, 1969)
Roy Sanderson (1 episode, 1969)
Det. Sgt. Rafferty (1 episode, 1969)
Tom Maxwell (1 episode, 1972)
John Eldon (1 episode, 1972)
Miss Bush (1 episode, 1972)
Percy Griffin (1 episode, 1975)
PC Lever (1 episode, 1975)
Magistrate (1 episode, 1975)
Harold Layton (1 episode, 1975)
Harry Rowlands (1 episode, 1969)
Prison Doctor (1 episode, 1969)
Watchman (1 episode, 1969)
Det. Con. Sharp (1 episode, 1969)
Ambulanceman (1 episode, 1970)
Workman (1 episode, 1972)
Sally Howard (1 episode, 1972)
Presenting Officer (1 episode, 1975)
Lorry Driver (1 episode, 1975)
Dorothy Yeldham (1 episode, 1975)
Sir Ernest Lang (1 episode, 1969)
Aunt Harriet (1 episode, 1969)
Major Dibbyn (1 episode, 1969)
Charles Willard (1 episode, 1969)
Sir Archibald Maclaren (1 episode, 1969)
Sir George's Secretary (1 episode, 1972)
Mrs. Kellaway (1 episode, 1969)
Elwyn Richards (1 episode, 1969)
Lord Radchester (1 episode, 1969)
Park Keeper (1 episode, 1969)
Mrs. Hume-Gilbert (1 episode, 1969)
Jury Foreman (1 episode, 1969)
Magistrate (1 episode, 1969)
Court Chairman (1 episode, 1969)
Gilbert Ellnet (1 episode, 1969)
Police Sergeant (1 episode, 1969)
Prosecuting Barrister (1 episode, 1969)
Old Page Boy (1 episode, 1969)
Fletcher's Solicitor (1 episode, 1969)
Brewery Workman / Furniture Removal Man (uncredited) (2 episodes, 1972)
Jeep Driver (uncredited) (1 episode, 1969)
Clerk of the Court (uncredited) (1 episode, 1969)
Tout (uncredited) (1 episode, 1969)
Hargrave's Daughter (uncredited) (1 episode, 1969)
Angel Saqui (uncredited) (1 episode, 1969)
Ziggy (uncredited) (1 episode, 1969)
Mrs. Fletcher (uncredited) (1 episode, 1969)
Irish Labourer (uncredited) (1 episode, 1970)
Brewery Workman (uncredited) (1 episode, 1972)
Magistrate (uncredited) (1 episode, 1975)
James Ogmore (uncredited) (1 episode, 1975)
Jury Foreman (uncredited) (1 episode, 1975)