| Season Four|
Dr. Finlay's Casebook
|Season Premiere||November 21st, 1965|
|Season Finale||May 15th, 1966|
|Cast||Bill Simpson; Andrew Cruickshank; Barbara Mullen|
Season Four of Dr. Finlay's Casebook aired on the BBC One from November 21st, 1965 to May 15th, 1966, totaling twenty six episodes. The three main cast members from season one all returned to reprise their respective roles: Bill Simpson as Doctor Finlay, Andrew Cruickshank as Doctor Cameron and Barbara Mullen as Janet MacPherson. The show is based on a series of novellas written by A.J. Cronin.