It is with heavy hearts we announce that our father, Brian passed away last night from natural causes, not Covid-related. Larger than life, generous to a fault, a proud and devoted father and grandfather, he will be missed by his wife Jennifer, family and many friends. pic.twitter.com/ILyrGpLnc3

— Elizabeth Dennehy (@dennehyeliza) April 16, 2020

Was lucky enough to see Brian Dennehy twice on stage, masterful in Love Letters, and monumentally heartbreaking in Death Of A Salesman. A colossus. What a loss.

— Lin-Manuel Miranda (@Lin_Manuel) April 16, 2020

Sending sympathy to Elizabeth Dennehy and her family on the loss of her father, the great Brian Dennehy.

— Brent Spiner (@BrentSpiner) April 16, 2020

Brian Dennehy, Burly Actor in 'First Blood,' 'Cocoon' and 'Death of a Salesman,' Dies at 81 https://t.co/iqRXLPWfEO Gutted. RIP Bear

— TitusWelliver (@welliver_titus) April 16, 2020

Another day. Another piece of devastating news. For those who never got to see Brian's towering performance in "Death of A Salesman," it will go down as one of the crowing performances ever delivered in a stage. #RIPbriandennehy https://t.co/23QgabbeZY

— Josh Gad (@joshgad) April 16, 2020

I’m just devastated to hear we lost my beloved friend and colleague, #BrianDennehy. We were partners on two of my favorite films, Split Image and Best Seller. I’ve never laughed so hard as we did every day on the set or off. For a big “tough guy,” he was a sweetheart. #RIPBrian pic.twitter.com/EjsxMvqlxw

— James Woods (@RealJamesWoods) April 16, 2020

RIP Brian Dennehy. Brilliant and versatile, a powerhouse actor and a very nice man as well.

— Michael McKean (@MJMcKean) April 16, 2020

Condolences to the family of Brian Dennehy. 😞 A wonderfully talented actor.

— William Shatner (@WilliamShatner) April 16, 2020