Gallery Remembering Kirstie Alley Launch Gallery GettyKirstie Alley's death is not only shocking to fans, but also to her closest friends and costars -- like Ted Danson and New Kids On the Block singer Jonathan Knight -- who are expressing their love and admiration for the late actress.
Her fellow "Cheers" vet, Ted, says he was actually on a plane Monday, watching an episode of their classic sitcom -- the one where guest star Tom Berenger proposes to Kirstie's character, Rebecca.
He told People he got the horrible news about Kirstie when he got off that flight.
Gallery Kirstie Alley's Famous Friends Launch Gallery GettyHe added, "I am so sad and so grateful for all the times she made me laugh. I send my love to her children. As they well know, their mother had a heart of gold. I will miss her."
Kelsey Grammer also shared some of his thoughts on the loss, saying ... "I always believed grief for a public figure is a private matter, but I will say I loved her."
Of course, "Cheers" fans know Kirstie got her big break starring alongside Kelsey and Ted on the show.
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