Saint-Cyr was born in
Longueuil. Alongside
Vincent Bolduc (Alexis) in
1993, he played the prominent role of Clément Fortin, a teenager who commits suicide in the dramatic
TVA series ''
Ent'Cadieux'', written by
Guy Fournier. He played the role of
Paul Rose in the miniseries
October 1970, tracing the tragic events that occurred in
October 1970 in Quebec. It was broadcast on
CBC Television and
Télé-Québec. Since 2007, he hosted the show
Podium Xtrême on
Ztélé, dealing with emission technology in extreme sports. In the winter, he hosted
The Car Guide on the channel
Vox in Montreal. On September 25, 2014,
Echos Vedettes magazine revealed that he was suffering from cancer of the bone and undergoing
chemotherapy. He died from this on September 24, 2015. He had two daughters with actress
Isabelle Guérard. == Honours ==