Mary Walsh was born in St. John’s, Newfoundland. She studied acting at Ryerson University and is the creator of CBC’s This Hour Has 22 Minutes, which has won numerous Gemini, Canadian Comedy and Canadian Screen Awards. She is a versatile actress and has appeared in both dramas and comedies, including the Gemini Award-winning Hatching, Matching and Dispatching, which she wrote and starred in. Recently, Walsh has appeared in Little Dog (two seasons), Hudson & Rex, Sensitive Skin, Rookie Blue and Slasher. In 2019 she shot a lead role in Helen Shaver’s feature film Happy Place, which is currently in post-production. She currently has several feature films in development, and in 2017 the cast of Hatching, Matching and Dispatching was reunited for a CBC feature called Christmas Fury, of which Walsh is the writer, producer and star. She is a Member of the Order of Canada and has received a Governor General's Performing Arts Awards for Lifetime Artistic Achievement.