Cory Monteith 1982-2013

The Glee Cast: Life after Loss

How Lea Michele, Jane Lynch and the rest of McKinley High are continuing to heal as the series pays tribute to the late star on Thursday

DIANNA AGRON

After playing one of Monteith's on-screen love interests, Agron was among the first to speak out, telling PEOPLE, "In this difficult time, I am leaning on all of the wonderful memories we shared with Cory, how many ways he was able to make us smile." She also leaned on her costars: Agron, who's not expected to appear in the tribute episode, later reunited with cast mates Kevin McHale and Jenna Ushkowitz to support Chord Overstreet at his July 20 Los Angeles concert.