Guest Stars Sarah Booth as Yvette Nichol Julian Bailey as Peter Morrow Anna Tierney as Clara Morrow Marie-France Lambert as Reine-Marie Tantoo Cardinal as Bea Mayer Anna Lambe as Blue Two-Rivers Clare Coulter as Ruth Zardo Georgina Lightning as Arisawe Two-Rivers Gryffin Hanvelt as Young Gamache Isabel Deroy-Olson as Kara Two-Rivers Frédéric-Antoine Guimond as Olivier Brulé Pierre Simpson as Gabri Dubeau Frank Schorpion as Pierre Arnot Tamara Brown as Myrna Landers Rylie Abakan Simon as Pearl Crystle Lightning as Missy Two-Rivers Marie-Josée Bélanger as Gamache's Mother Joe Cobden as Hayden Smith Max Laferrière as Mike Blake Ali Hand as Sophie Patricia Summersett as Angela Blake Daniel Murphy as Marc Fortier Jill Frappier as Emilie Longpre Robert Moloney as Richard Lyon Simone-Elise Girard as CC de Poitiers Iannicko N'Doua as Saul Petrov Roberta Battaglia as Crie Kathleen Fee as Kaye Thompson Ginette Beaumont as Elderly Homeless Woman - Eleanor Michael Douglas Cake as Smoking Janitor