First broadcast 11th March 2018.
After the mysterious disappearance of a teacher, Endeavour finds himself investigating the dark and secret world of a public school.
Anton Lesser - Chief Superintendent Reginald Bright
Roger Allam - DCI Fred Thursday
Lewis Peek - DC George Fancy
Sean Rigby - DS Jim Strange
Dakota Blue Richards - WPC Shirley Trewlove
Shaun Evans - DS Endeavour Morse
Caroline Martin - Kate Ivory
Aldo Maland - Stanlow
Sam Clemmett - Rackway
Jojo Macari - Queach
Lilit Lesser - Ravenna Mackenzie (as Lily Lesser)
Michael Simkins - Baldwin Mackenzie
Felix Scott - Mr. Blackwell
Andrew Buckley - Alun Bodnar
Barney Taylor - Summerhead (as Barnaby Taylor)
Xander Classey - Gaudibund
Mark Arden - Eddie Nero
Louis Strong - Clunchfist
Tom Panay - Morris Minor
Anson Boon - Brett Nero
Caroline O'Neill - Win Thursday
Madeleine Worrall - Mrs. Seymour
David Jonsson - Cromwell Ames (as David Jonsson Fray)
Phil Daniels - Charlie Thursday
James Bradshaw - Dr. Max DeBryn
Abigail Thaw - Dorothea Frazil
Sara Vickers - Joan Thursday
Nick Davison - Mourner
Richard Price - Mourner
Luke Steele - John Ivory
