First broadcast 26th September 2021.

The team investigates the violent and peculiar murder of an Oxford college don.

Adam Ewan - Les Grant
William Sebag-Montefiore - Professor Patrick Stanton
Anna Burnett - Linda Travers
Adam Mirsky - Richard Blake
Ray Emmet Brown - John Peckett
Roger Allam - DCI Fred Thursday
Sean Rigby - DS Jim Strange
James Bradshaw - Dr. Max DeBryn
Shaun Evans - DS Endeavour Morse
Anton Lesser - Chief Superintendent Reginald Bright
Caroline O'Neill - Win Thursday
Chirag Lobo - Asif Faradoon
Sara Vickers - Joan Thursday
Martin Hutson - Lawrence Yeager
Marion Bailey - Hilda Bruce-Potter
Matthew Marsh - Percy Walsh
Ben Bishop - Norbert 'Nobby' Hobbs
Estella Daniels - Elsie Watson
Jennifer Kirby- Dr. Gillian Nicholls
Abigail Thaw - Dorothea Frazil
Anthony Flanagan - Flavian Creech
Ty Hurley - Crime Investigation Department
Richard Price - Roland Parker