Last month, veteran actor, Fred Willard, sadly passed away.

Details surrounding his death have remained unclear but, now, his cause of death has officially been confirmed.

Last month, we lost a legend.

Veteran actor, Fred Willard, tragically passed away aged eighty on May 15th.

He lived an incredible life.

Born on September 18th, 1939, Willard was never certain exactly the location of his birth, however, he was 'pretty sure' it was in Cleveland.

But what he did know is that he had always wanted to be an actor.

Willard first started acting in the late '50s, starring in a performance of Desperate Hours at a local YMCA.

But first, he enlisted with the U.S military.

via: Getty

As a teenager, Willard was sent to military school, which was followed by a 2-year stint in the army. In this time, he served in West Germany.

But, his heart always laid within the world of acting...

After leaving the army, Willard had his big break in the 1970s after he starred in Mary Hartman and it's spin-offs.

And the rest is history.

Following his breakthrough, Willard just got bigger and bigger - with hundreds of roles, from King of the Hill to American Wedding.

He starred in countless movies throughout his career.

Willard was a true veteran of modern cinema and television starring in Roseanne, The Simpsons, and This Is Spinal Tap.

And that's not all.

Willard was a household name and face for millions of Americans - down to the sheer amount of acting credits to his name. To name a few more, Willard also starred in Modern Family, Austin Powers, and Harold & Kumar.

He dabbled in the world of comedy, too.

Although he's known for his countless comical characters, Willard initially started out as a comedian, performing sketches on The Johnny Carson Show.

And, throughout all the success, Willard remained valiantly as a family man.

The actor married the love of his life, Mary Lovell, in 1968, and they had their first and only child, Hope, the following year.

They remained together all of their lives.

Until she sadly passed away in 2018.

Understandably, Willard was heartbroken at the loss of his wife...

Mary was also a big figure in the world of comedy, and she worked at putting a smile on the faces of her loved ones until the day she died.

And, like his wife, Willard worked right up until his death.

The actor never retired - His final film, Space Force, in which he stars alongside Steve Carrell, has just been released on Netflix.

But tews of his death emerged before it was released.

On May 15th, news started appearing about that Willard has passed away.

Jamie Lee Curtis confirmed the news.

The actor and author, Jamie Lee Curtis, whose husband, Christopher Guest, had frequently collaborated with Willard, was the first to share the tragic news.

She paid an emotional tribute to him.

Writing online, Curtis said: "How lucky we all are that we got to witness his great gifts. Thanks for the deep belly laughs."

His family also spoke out.

His daughter Hope told TMZ: "My father passed away very peacefully last night at the fantastic age of 86 years old. He kept moving, working, and making us happy until the very end. We loved him so very much. We will miss him forever."

As did countless actors.

Admired and adored by thousands of fellow actors, many of them paid tribute to Willard following the news of his death. Steve Carell wrote: "Fred Willard was the funniest person that I've ever worked with. He was a sweet, wonderful man."

Modern Family stars also spoke out.

Jesse Tyler Ferguson, who plays Mitch on Modern Family, wrote: "Rest In Peace sweet @Fred_Willard. You will always be a true original and I am so honored that our lives intersected. No one will ever come close to replacing your genius."

Weeks have passed since his devastating death...

And, while many have assumed he simply passed away of old age, the cause was never confirmed.

But today, we now have the official cause of death. 

via: Getty

According to TMZ, his official death certificate states that the actor died after suffering a cardiac arrest.

The underlying causes are listed as myelodysplastic syndrome and coronary artery disease...

via: Getty

But it is known that he passed away peacefully surrounded by his family.

Rest in peace, Fred Willard.

The world has truly lost an icon of modern cinema.