[2] He was described as having a completely differently personality than Homer, with Gagnon remembered as "charming, polite and refined" by fellow voice actor Natalie Hamel-Roy.
[2] Nonetheless, his voice became so synonymous with the character that during a week-long visit to Cuba, he was constantly asked by children there to repeat Homer's catchphrase "D'oh!
[4] On the occasion of the series' 500th episode in 2012, Gagnon observed how voice acting was no longer disdained by the theatre industry, given that it was now being taught in stage schools.
[5] Gagnon provided the voice of Mel Gibson, Robert De Niro, Richard Gere, and Christopher Walken, among others, in several English-language movies dubbed into French, as well as the character Picabo on the Québécois TV show Les Oraliens.
[6] He was also the voice of Optimus Prime in the Quebec dubbing of the original Transformers cartoon,[7] but for the 2007 film, he was replaced by Guy Nadon, who had coincidentally portrayed Sideshow Bob alongside Gagnon in the Québécois dubbed version of The Simpsons.