Kyle MacLachlan, who was David Lynch’s FBI agent Dale Cooper from Twin Peaks, Paul Atreides from Dune and Jeffrey Beaumont from Blue Velvet, took to social media Thursday to express his sorrow over the death of the filmmaker who made him a leading man across TV and film.

Kyle MacLachlan has addressed David Lynch’s death. The actor, 65, paid tribute to the legendary filmmaker on Thursday, just hours after Lynch’s family shared his passing at age 78. His cause of death was not disclosed.

I will miss him more than the limits of my language can tell and my heart can bear. My world is that much fuller because I knew him and that much emptier now that he’s gone.”