stylistic:tone
Controversies and feuds

Carson often made jokes at the expense of other celebrities. In 1980, Carson backed out of a deal to acquire the Aladdin Hotel & Casino in Las Vegas, and a competing group led by Wayne Newton successfully bought the property. According to lawyer Henry Bushkin, Carson became annoyed that he was often portrayed by the media as having "lost" the deal and reacted by telling jokes on his show about Newton, who had spent a great deal of effort building a masculine image. This created something of a high-profile feud between Carson and Newton. Years later, Newton appeared on Larry King Live, declaring that "Johnny Carson is a mean-spirited human being. And there are people that he has hurt that people will never know about. And for some reason at some point, he decided to turn that kind of negative attention toward me. And I refused to have it." Newton has often told of personally confronting Carson; after the final straw, Newton barged into Carson's office at the NBC studios and threatened to beat him up unless the jokes stopped.

On February 27, 1982, Carson was arrested for drunk driving on La Cienega Boulevard, near Beverly Hills; he was released on his own recognizance. Carson pleaded no contest to the charges, and in October 1982, received a sentence of three years probation, a fine of $603 and was required to attend a driver's education alcohol program. Carson's driving privilege was restricted to driving only to and from work and alcohol education classes for a period of 90 days.

Perry Mason actor Raymond Burr became angry over Carson's continuing jokes about his weight, and he appeared on The Tonight Show only twice, in 1968 and 1976.

On July 2, 1969, Carson launched an on-air attack on The New York Times after his nightly monologue, assailing the newspaper for an article saying that he was the highest-paid performer on television, earning $75,000 (equivalent to $623,140 in 2023) a week. He denied that was so, while declining to reveal his compensation in a subsequent interview with the newspaper, and called the article "damned unfair." The Times published a follow-up article saying that its initial reporter "erred", and that $75,000 a week was unlikely.

Carson reportedly loathed what he perceived as disloyalty, and he was furious when former frequent Tonight Show guest hosts John Davidson and Joan Rivers began hosting their own talk shows. Rivers' show on the Fox Network directly competed with Carson during the 1986–1987 season before being cancelled. On June 24, 2009, following Ed McMahon's death, Rivers lauded McMahon on Larry King Live, but said that after she got her own show, Carson refused to ever speak to her again.

In December 1973, Carson joked on Tonight about an alleged shortage of toilet paper. Viewers believed the story and panic buying and hoarding ensued across the United States as consumers emptied stores, causing a real shortage that lasted for weeks. Stores and toilet paper manufacturers had to ration supplies until the panic ended. Carson apologized in January 1974 for the incident, which became what The New York Times called a "classic study" of how rumors spread. Carson called references in the article to him "very unfair".

Carson successfully sued a manufacturer of portable toilets that wanted to call its product "Here's Johnny".

Carson performed a parody of Mister Rogers' Neighborhood. Rogers noted, "I've told Johnny that I like humor as much as anybody. But what concerns me is the takeoffs that make me seem so wimpy ! I hope it doesn't communicate that Mr. Rogers is just somebody to be made fun of. Only people who take the time to see our work can begin to understand the depth of it." Carson later apologized to Rogers for making fun of him.