Leah Remini is mourning the loss of her beloved friend and colleague. Following the death of Mike Rinder on Sunday at age 69, the actress, 54, paid homage to the late star on social media.

I haven’t come to terms with the reality that I can’t call him and hear his voice anymore," the actress wrote in honor of her late friend

"The thought of moving forward without him feels unbearable," the actress and TV personality says of Mike Rinder.