Jean Villeneuve, who plays General Zoomin, is Martin Villeneuve and Denis Villeneuve's father. He is a notary, and had never before performed in front of a camera.
Manny, played by Emanuel Hoss-Desmarais, reprised the role of the Marsonaute in Martin Villeneuve's feature film debut Mars and April (2012) (as well as in both volumes of the eponymous graphic novels), and later became a filmmaker, even winning an award at Tribeca for his first feature film, Whitewash (2013).
Arthur Tarnowski, who helped Martin Villeneuve edit La minute de silence (1996), is now one of the most in-demand editors in Quebec, and has edited Villeneuve's short films Imelda 2: le notaire (2020), Imelda 3: Simone (2020) and Imelda 4: le cadeau (2022).
Caroline Dhavernas - lead actress of Martin Villeneuve's first feature film Mars and April (2012) - was the Sound Recordist on La minute de silence (1996). Villeneuve and Dhavernas were roommates during their college years.
Benny is portrayed by the College's lab technician of the time, Benoît Legault.