Matthew Lewis ( All Creatures Great and Small, Harry Potter ), who was previously announced as the show's lead, will be ...

Also newly revealed to be joining the cast list are Tamzin Outhwaite (recently seen on Silent Witness ), Meghan Treadway ( One Day ), Nina Toussaint-White (Showtrial), Francis Magee (Kin), Marion ...

Acorn TV and Channel 5 announce additional cast members and the start of production on the new murder mystery drama, Murder Before Evensong.