[1] He portrayed numerous roles in several popular Quebec films and series.
[7][8] In addition to the Elvis Gratton films, Poulin also played several main and supporting roles in other films and television series including The Crime of Ovide Plouffe (Le Crime d'Ovide Plouffe) in 1984, Lance et Compte in 1986, The Party (Le Party) in 1990, Virginie in 1996, Jasmine and Omertà 2, la loi du silence in 1997, Les orphelins de Duplessis and Le Dernier souffle in 1999, February 15, 1839 (15 février 1839) and Fortier in 2001, Séraphin: Heart of Stone (Séraphin: un homme et son péché)in 2002 and Le Négociateur 1 and Le Négociateur 2 in 2005–2006.
Poulin portrays Gaétan Langlois in the award-winning show Minuit, le soir.
Poulin played his last role in episode 20 as Jessica's father in Radio-Canada's Unité 9 (2016).
Poulin was the spokesperson for Opération Nez rouge in 1996, a campaign against drinking and driving during the holidays.