The Oscar winner and The Sound of Music star died Friday at 91.
“What a guy.
What a life,” Scott says.

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My heartfelt condolences go to [Plummer’s wife] Elaine [Taylor]."
My heart and condolences go out to his lovely wife Elaine, and his daughter Amanda."
Chris Evans, who starred with Plummer inKnives Out, said losing Plummer “is truly heartbreaking.”
“What an unbelievable loss,” he wrote on Twitter.
“Few careers have such longevity and impact.
One of my favorite memories fromKnives Outwas playing piano together in the Thrombey house between set ups.
He was a lovely man and a legendary talent.”
The official Twitter account forThe Sound of Musicshared a video of Plummer from the iconic film.
“We’re saddened to hear of Christopher Plummer’s passing,” the tweet reads.
“His legacy as our Captain will live on in THE SOUND OF MUSIC forever.
Our thoughts are with his loved ones during this time.”
The Academy’s official Twitter account also shared a moving tribute to the legendary actor.
He will be missed."
Besides being a such a talented actor, he was a true gentleman.
It was a privilege to work with him and I will miss his presence in our community."