In 2012, he took part in a number of television series playing lead role of william in Les Argonautes, a youth series on Télé-Québec and role of Clovis in Radio-Canada television series Mémoires Vives. He also took part in two seasons of Tactik, a youth series on Télé-Québec and a role in the short film Le Siège and role of Janeau Trudel in the feature film Les Pee-Wee 3D: L'hiver qui a changé ma vie. In 2013, he appeared in the Indochine music video for "College Boy". The controversial video about school bullying was directed by Xavier Dolan and banned on certain stations for viewers below 16.
Born in Montreal, Antoine Olivier Pilon moved with his family to Port-Daniel–Gascons in Quebec's Gaspésie–Îles-de-la-Madeleine when he was four. Studying in Le Phares school, he returned to Montreal when he was 10.
The following year, Pilon was cast as the lead role in Mommy, also by Xavier Dolan. The film co-won the Jury Prize at the 2014 Cannes Film Festival. Pilon was named one of the best actors under the age of twenty by IndieWire.
