Reaction to the death of comedy legend Don Rickles:

"He was called 'The Merchant of Venom,' but in truth, he was one of the kindest, caring and most sensitive human beings we have ever known. We are devastated and our world will never be the same. We were totally unprepared for this." — Bob and Ginnie Newhart in a statement.

"A giant loss." — Billy Crystal via Twitter.

"We lost a great one. fast furious brilliant for decades the definition of genius." — Sandra Bernhard via Twitter.

"God Bless Don Rickles, aka, Mr. Warmth! Proud to have been heckled by him from the stage many times!" — LeVar Burton via Twitter.

"In lieu of flowers, Don Rickles' family has requested that people drop their pants and fire a rocket." — Patton Oswald via Twitter.

"You brightened our lives every time you were on screen." — Ruth Buzzi via Twitter.

"Don Rickles, you kept us laughing for so many years. We will miss you dearly. Thanks for the zingers. You were one of a kind." — George Takei via Twitter.

"One of the funniest people that ever lived, you dumb schmuck." — Billy Eichner via Twitter.

"90 years of Don Rickles weren't enough. One of the sweetest and most lovely people I had the pleasure of knowing." — Jimmy Kimmel via Twitter.

"Awwww man Rickles is dead. Rest In Peace buddy." — Danny DeVito via Twitter.

"The Merchant of Venom, legendary comedian... The sweetest guy, great hubby & dad." — Al Roker via Twitter.

"Hockey puck. We've lost Don Rickles. I love him so. Smart, funny, a pro and most important deeply and honestly kind. Kind is what matters." — Penn Jillette via Twitter.

"My friend, my dad, the funniest biggest hearted of them all. A beautiful husband and father. My heart is broken." — Bob Saget via Twitter.

"Don Rickles was simply the best. He created insult comedy & yet every 1 of his targets felt loved and honored. One of a kind." — Jason Alexander via Twitter.