ITV has revealed who will be playing the young incarnation of Helen Mirren’s iconic character Jane Tennison. Tennison, the new prequel to Prime Suspect, has now started filming on location in London. Stefanie Martini (Doctor Thorne, Endeavour) will lead the cast as the young Jane Tennison. She’ll be joined by Blake Harrison (Dad’s Army, The Inbetweeners) and Sam Reid (Belle, The Riot Club) as … >