Cory Monteith's 'Glee' co-stars have paid tribute to him.

The 31-year-old actor died earlier this month of a heroin and alcohol overdose and members of the cast including Kevin McHale and Jayma Mays have spoken out about their love for the tragic star.

Kevin wrote on Instagram: ''So thankful that I and so many of you got to experience Cory's overwhelming kindness, humor and talent.

''There will not be a day that goes by that I won't miss him. Thank you all for your incredible support and patience (sic).''

Meanwhile, Jayma told E! News: ''There are so many things to remember about Cory. He was such a fun guy to be around and I have nothing but amazing, wonderful memories of working with him.

''I have those memories to always take forward with me.''

Cory's girlfriend and co-star, Lea Michele, also broke her silence on Cory's death to reveal she will always love him.

After posting a picture of them both on Instagram, she wrote: ''Thank you all for helping me through this time with your enormous love & support. Cory will forever be in my heart (sic).''