Actor Gary Sinise has dedicated himself as a champion of our nation’s heroes, but his family faced challenges when his son, Mac, was diagnosed with a spinal cancer called chordoma in 2018 at age 27.

Gary Sinise's son Mac tragically died after a cancer battle last year, and the actor wants to keep his legacy alive by ...

So why did Gary Sinise quit Hollywood? Here's everything to know about the reason the Oscar nominee stopped acting and where he is today. During a May 2025 conversation with PEOPLE, Sinise shared that ...