Patricia Cano delivers in The (Post) Mistress! ~ Arpita Ghosal Posted on October 16, 2016November 14, 2017 by Arpita Ghosal Patricia Cano plays the hilarious and heartwarming Marie-Louise Painchaud, the Métis post mistress who minds the village’s sole post office . . . along with everyone else’s business in Tomson Highway’s The (Post) Mistress.