Matt Damon Crashes Jimmy Kimmel's Show in Furry Mascot Costume

On October 4th, 2025, as Jimmy Kimmel's "Brooklyn Week" came to a close, he received an unexpected visit from his longtime rival, actor Matt Damon. Damon, dressed in a neon furry mascot costume, made a surprise cameo during Kimmel's monologue, initially going unnoticed by the audience.

However, when the mascot began insulting Kimmel, viewers quickly realized that Damon was the one under the costume. Kimmel expressed his frustration, telling the audience, "Stop cheering for him. This is breaking and entering," as this was not the first time Damon had "snuck" onto the show.

Damon explained that he wore the costume in a last-ditch effort to appear on Kimmel's show, as he believed the program had been cancelled by the president, who had criticized Kimmel's "zero ratings and no talent." Kimmel, however, had to break the news to Damon that the show was not ending and would air again on Monday.

The ongoing feud between Damon and Kimmel dates back to 2005, when Kimmel jokingly apologized for bumping Damon from the show due to a lack of time. This sparked a running gag where Damon would try to "sneak" onto the show, often with the help of other celebrities.