| Teddy |
Adams | Author |
| Marcus |
Aurelius | Former Roman Emperor |
| Robert |
Bathurst | British actor |
| Marc |
Beaulieu | Writer |
| Jean-Guy |
Beauvoir | Gamache's former second-in-command; now his son-in-law |
| Monsieur |
Béliveau | The grocer |
| Monsieur |
Bergeron | Manager of toponymie for the region |
| Michel |
Brébeuf | Gamache's childhood friend |
| Thérèse |
Brunel | Chief Superintendent at the Sûreté |
| Hugo |
Charpentier | One of Gamache's recruits. Aka: Professor |
| Pema |
Chödrön | Buddhist nun |
| Amelia |
Choquet | A young woman with a past of prostitution and drug abuse |
| Robert |
Choquet | Amelia Choquet's father |
| Huifen |
Cloutier | Cadet at the Sûreté Academy. Aka: Whoofa |
| Adam |
Cohen | Canadian singer-songwriter |
| Elizabeth |
Coldbrook | Works at a gun manufacturer. Aka: Madame Coldbrook |
| Elizabeth |
Coldbrook-Clairton | Vice-president of public affairs at McDermot |
| Robert |
De Niro | American actor and director |
| Fred |
Flintstone | Fictional cartoon character |
| Lucy |
Foley | Mystery writer |
| Sylvain |
Francoeur | Gamache's superior and longtime rival |
| Armand |
Gamache | Chief Inspector of the Sûreté du Québec |
| Amelia |
Gamache | Armand Gamache's mother |
| Honore |
Gamache | Armand Gamache's father |
| Annie |
Gamache Beauvoir | Armand and Reine-Marie's daughter |
| Paul |
Gélinas | Deputy Commissioner |
| Marcel |
Godbut | Gamache's acquaintance |
| Sharon |
Harris | Coroner |
| Isabelle |
Lacoste | Head of homicide |
| Jacques |
Laurin | Third-year student and class leader at the Sûreté Academy |
| Serge |
Leduc | Professor at the Sûreté Academy. Aka: Duke |
| Niccolò |
Machiavelli | Florentine diplomat, philosopher, and historian |
| Nelson |
Mandela | South African activist and former president |
| Madame |
Marcoux | New head of the Sûreté du Québec |
| Bert |
Marshall | Canadian ice hockey player |
| Roland |
Mongeau | Head of a drug cartel |
| Cadet |
Montreaux | Cadet at the Sûreté Academy |
| Clara |
Morrow | Artist |
| Thomas |
Muenier | Belgian professional footballer |
| Dr. |
Nadeau | Pathology professor |
| Yvette |
Nichol | Difficult agent under Gamache's wing |
| Denis |
Perron | Canadian politician |
| Gilles |
Sandon | Recurring character in the series |
| Siegfried |
Sassoon | English war poet, writer, and soldier |
| Nathaniel |
Smythe | Sensitive first-year cadet at the Sûreté Academy |
| Gloria |
Steinem | American feminist journalist |
| Jonathan |
Swift | Irish writer and essayist |
| David |
Thompson | American former basketball player |
| Antony |
Turcotte | Father of Québec's modern mapping |
| Marie |
Valois | Maker of a map for her sons. Aka: Mayor Florent |
| Frederick |
Valois | Husband of Marie Turcotte Valois |
| Christopher |
Walken | American actor |
| Billy |
Williams | Myrna's partner |
| William Butler |
Yeats | Irish poet and former senator |
| Ruth |
Zardo | Elderly poet |
| Daniel |
| Armand Gamache's son |
| Dominique |
| Co-owner of the old Hadley house |
| Florence |
| Daughter of Daniel and Roslyn |
| Gabri |
| Olivier's partner |
| Gracie |
| Small dog belonging to the Gamache family |
| Henri |
| Gamache's dog |
| Honore |
| Jean-Guy and Annie's son |
| Joseph |
| Son of Marie and Frederick |
| Leo |
| Adorable puppy |
| Marc |
| Dominique's husband |
| Myrna |
| Bookstore owner |
| Norman |
| Joseph's twin brother |
| Olivier |
| Owner of a local bistro |
| Pierre |
| Oldest son of Frederick and Marie Turcotte |
| Reine-Marie |
| Armand Gamache's wife |
| Rosa |
| A duck |
| Roslyn |
| Daniel Gamache's wife |
| Sarah |
| The baker |
| Thibodeau |
| Third-year cadet at the Sûreté Academy |
| Zora |
| Daughter of Daniel and Roslyn |
