The deaths of Glee stars Cory Monteith, Naya Rivera and Mark Salling are still difficult for their former costar Dianna Agron ...

Monteith died in July 2013, two years before Glee wrapped, following an accidental overdose at the age of 31. Salling died by ...

The cast of the Emmy-winning series have reunited to collaborate consistently over the last decade, but rarely at this large a scale.