Brochu came from a single-parent family and has asthma, both of which he has in common with his character Buster Baxter on Arthur. He had worked as a postal carrier prior to becoming an actor. Brochu got into acting after one of his teacher’s wives, who had done dubbing, inspired him to become an actor. He credits Mel Blanc and his mentor Tim Reid for inspiration.
↑Brioux, Bill (24 February 2022). "Arthur ends as TV's longest-running animated kids show". brioux.tv. Retrieved 19 July 2024. I started to see similarities between Buster and myself over the years," he said. "Like he's from a single‑parent family, I'm from a single‑parent family. He loves sci‑fi and anything kind of science‑fiction wise. I am a huge sci‑fi buff. He has asthma; I have asthma. So it was blurring the lines there a little bit between reality and cartoon.