Series Three of Midsomer Murders premiered 31 December 1999, and concluded on 5 February 2000.
|Detective Chief Inspector Tom Barnaby||John Nettles||DCI Causton CID|
|Detective Sergeant Gavin Troy||Daniel Casey||DS Causton CID||DCI Barnaby's partner|
|Mrs. Joyce Barnaby||Jane Wymark||Wife of DCI Barnaby|
|Cully Barnaby||Laura Howard||Daughter of DCI Barnaby|
|Dr. George Bullard||Barry Jackson||Chief pathologist of Midsomer County.||He did not appear in Death of a Stranger or Judgment Day|
|Dr. Dan Petersen||Toby Jones||Pathologist of Midsomer County||Substitute for Dr. Bullard|
|Overall Episode Number Within the Series||Series Number||Order Number||Title||Broadcast Date||Screenplay or Episode Writer||Director||Notes|
|10||3||1||Death of a Stranger||31 December 1999||Douglas Livingstone||Peter Cregeen|
|11||3||2||Blue Herrings||22 January 2000||Hugh Whitemore||Peter Smith|
|12||3||3||Judgment Day||29 January 2000||Anthony Horowitz||Jeremy Silberston||Barry Jackson did not appear in this episode|
|13||3||4||Beyond the Grave||5 February 2000||Douglas Watkinson||Moira Armstrong||This was the final episode of series three.This was also the last episode in which Laura Howard appeared until her return beginning in Series Six.|
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