Comedian Don Rickles made David Letterman laugh so hard during a 1983 appearance on his late night program that Letterman ...

Comedian Don Rickles brought down the house during an appearance on David Letterman's late night program in 1987.

Rickles appeared on the TV series Get Smart, which ran from 1965-1970. Above, Rickles and costar Don Adams’ behind-the-scenes antics were recorded for a blooper reel.

April 7, 2017 / 9:56 AM EDT / CBS News Celebrities paid tribute to late comedy legend Don Rickles, and unsurprisingly, the 90-year-old’s death hit comics the hardest.

LOS ANGELES (AP) - Don Rickles, the big-mouthed, bald-headed "Mr. Warmth" whose verbal assaults endeared him to audiences and peers and made him the acknowledged grandmaster of insult comedy, died ...

Don Rickles, a longtime actor and comedian, has died of kidney failure at the age of 90. The Associated Press reports Rickles died Thursday morning at his home. Rickles was born in Queens, New ...

LOS ANGELES — Don Rickles, the big-mouthed, bald-headed comedian who frequently performed at Atlantic City casinos, died Thursday at his home. He was 90.

Don Rickles once called me a hockey puck on Larry Sanders. He could have beaten me silly with one and I still would've laughed. RIP genius. — Scott Thompson (@ScottThompson_) April 6, 2017 ...

John Stamos and Bob Saget have a lot of fond memories of Don Rickles and the tough love he showed them over the years. On Monday's Jimmy Kimmel Live, the Fuller House stars recalled how the ...

Don Rickles was a repeat offender on ’Jimmy Kimmel Live’ and the host decided to pay tribute to the late comedian with his best moments.

Don Rickles was simply the best. He created insult comedy &yet every 1 of his targets felt loved and honored. One of a kind. #RIPdonrickles — jason alexander (@IJasonAlexander) April 6, 2017 ...

Don Rickles and the AARP are joining forces. The nonprofit geared toward Americans over 50 is launching AARP Studios with its inaugural project being an unscripted series headlined by the 90-year ...