One of those is Jimmy Kimmel, who dedicated last night's episode of Jimmy Kimmel Live! to the late comedian.
Don then added: "Frank, believe me, I'm telling you this as a friend: Your voice is gone".
'We rented the private room in back, ' said Kimmel.
The New York-born Rickles had an intense, often-ad libbed, rapid-fire delivery and a wide, impish grin.
Kimmel also presented a "Best of Don Rickles" video from his appearances on Jimmy Kimmel Live! After all, Don appeared on the show well over a dozen times, and it started with Kimmel bugging him constantly to appear on the show until he convinced him to come on. He was awarded a star on the Hollywood Walk of Fame in 2000, and in 2008, he won an Emmy for the TV documentary Mr. Warmth: The Don Rickles Project.
"While I didn't know Don Rickles, I did have the incredible honor to meet him once", Colbert recalled. Later, after sending his love to Rickles' closest friends and family (including "step-daughters" John Stamos and Bob Saget), Kimmel queued up a montage featuring unforgettable moments from Rickles' 17 appearances on the show.
As Kimmel explained during the opening of Jimmy Kimmel Live!
According to Variety, Don Rickles died in his home on Thursday morning.
Kimmel said the two went to dinner after almost all of Rickles' subsequent 17 appearances, and he shared what Rickles meant to him. Upon receiving Rickles' condolences for SNL's cancellation, Meyers assured him it was still on the air, to which Rickles replied, "Ugh, a guy can dream".
"I feel bad, mostly for everyone in Heaven who will now learn first hand from the sharpest wits ever, what it's like to be Rickled". "But there's nothing better than comedian funerals, because everyone tells the best jokes".
Although he was widely known as an "insult" comic, stars, especially those in the comedy world, refuted that with stories about his kindness. He was a sweet sweet man and one of the comedy greats.
Kimmel reminisced about a dinner party he enjoyed with Rickles once at Mario Batali's Los Angeles restaurant Mozza.