The stand-up comedian Tony Hinchcliffe took the stage early in former President Donald J. Trump’s rally at Madison Square Garden on Sunday, hurling a wave of insults and vulgar statements at minority groups including Jews, Latinos and African Americans.

Many in the crowd, which was predominantly white with a significant number of Latinos, groaned when Hinchcliffe said Puerto Rico was a “floating island of garbage,” and when he called out a Black man in the audience with a reference to watermelon.

His comments drew swift condemnation, including from Bad Bunny, Jennifer Lopez, Lin-Manuel Miranda, Ricky Martin and other celebrities with ties to Puerto Rico.

Hinchcliffe has made a name for himself by making offensive remarks, including a tasteless joke about the N.B.A. star Kobe Bryant the day he was killed in a helicopter crash in 2020. While Hinchcliffe may not be widely known, he is a fixture in comedy circles as a frequent guest on “The Joe Rogan Experience” and as a host of the weekly podcast “Kill Tony.”

Here is what to know about Hinchcliffe and his brand of comedy.

He is known for a ‘roast’ style of insult comedy.

Hinchcliffe is a touring comedian based in Los Angeles who appears regularly at the Comedy Store in Los Angeles and hosts an online course on how to “roast,” a comedy style in which a guest of honor is the subject of sharp jokes and off-color comments.

He has written for eight Comedy Central roasts, according to his website, and has roasted celebrities like Snoop Dogg. This year, he was among the comedians who roasted Tom Brady in a Netflix special that was viewed 13.8 million times in its first week on the streaming platform.