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