Jacob Daniel Tierney (born September 26, 1979) is a Canadian actor, director, screenwriter, and producer.

(1990–1992) and as the co-writer, director, and executive producer of the sitcom Letterkenny (2016–2023), in which he also plays Pastor Glen.

[10][11] In 2012, Tierney participated in the jury of the Air Canada enRoute Film Festival.

[12] Tierney made his stage directing debut in 2015 with a production of Travesties by Tom Stoppard at the Segal Centre in Montreal.

[14] Tierney is the co-writer, director, and executive producer of the sitcom Letterkenny, in which he also stars as Pastor Glen.