Shaun Evans DC Endeavour Morse Actor, Director Roger Allam DI Fred Thursday Actor James Bradshaw Dr Max Debryn Actor Abigail Thaw Dorothea Frazil Actor Sean Rigby PC Strange Actor Anton Lesser Reginald Bright Actor Simon Harrison DCI Ronnie Box Actor Richard Riddell DS Alan Jago Actor Caroline O'Neill Win Thursday Actor Sara Vickers Joan Thursday Actor Oliver Chris Dr Elliot Wingqvist Actor Matthew Cottle Jeff Slayton Actor Alice Orr-Ewing Natalie Wingqvist Actor Blake Ritson Gabriel Van Horne Actor Mary Stockley Hildegard Slayton Actor Sophie Winkleman Isobel Humbolt Actor Sargon Yelda Dr Larry Humbolt Actor Alison Newman Viv Wall Actor Michael Parkhouse TV Anchor Actor Benjamin Wainwright Professor Adam Drake Actor Sasha Willoughby Flora Humbolt Actor Robert Hands Eric Gidby Actor Terenia Edwards Marilyn Gidby Actor Katie Faye Christine Chase Actor Ross Boatman Mac Honeydew Actor Charlotte Bradley Mrs Trellis Actor Gabriel Payne Matthew Humbolt Actor Russell Lewis Writer, Executive Producer Deanne Cunningham Producer Damien Timmer Executive Producer Helen Ziegler Executive Producer