Jacob Daniel Tierney is a Canadian actor, director, screenwriter, and producer. He is best known for playing Eric in Are You Afraid of the Dark? (1990–1992) and as the co-writer, director, and executive producer of the sitcom Letterkenny (2016–2023), in which he also plays Pastor Glen.

Kevin Tierney was a Canadian film producer from Montreal who co-wrote and produced the most popular Canadian film of all time at the domestic box office, Bon Cop, Bad Cop, for which he earned a Golden Reel, the Genie Award for Best Motion Picture in 2007. He is a former vice-chair of the Academy of Canadian Cinema & Television and former chair of the board of Cinémathèque québécoise.