Guest Stars Kahl Murphy as Connor Judge Kye Murphy as Connor Judge Anna Burnett as Mathilda Reid Jonas Armstrong as Nathaniel Benjamin O'Mahony as Det. Sgt. Frank Thatcher Anna Koval as Rachel Castello Sonya Cassidy as Leda Starling Jon Øigarden as Bo Nystrom Luke Andrew Feeney as Workhouse Boy 1 Charley Palmer Rothwell as Redskin Jake Sean Rea as Riot Copper Noelle Brown as Workhouse Matron John Crofton as Workhouse Boy 2 Daragh Kearney as Tommy Riggs Jamie Ballard as Cornelius Wilde Billy Seymour as Percy Orton Robert Donnelly as Arthur