Jon Stewart has had everyone from politicians to dictators as guests on The Daily Show, but, according to him, it's an actor that gets the title as worst guest he's ever had on the show. During the same event where he revealed that he almost quit The Daily Show back in 1999, Stewart revealed that Hugh Grant was a nightmare when he appeared on the show in 2009. From Third Beat magazine:
Stewart's least favourite guest of all time is Hugh Grant, "and we've had dictators on the show". Grant spent his time at the studio complaining that he had other places to be. "He's giving everyone shit the whole time, and he's a big pain in the ass," Stewart recalled. Grant also complained to the staff about the clip that was selected of the movie he was promoting, Did You Hear About the Morgans? – a clip that was obviously supplied by the film's publicist. Stewart recalls Grant angrily asking "What is that clip? It's a terrible clip." "Well, then make a better fucking movie," Stewart said, adding that he would "never" have Grant back.
Yikes. It's not like anyone expected Hugh Grant to be a major bro's bro, but to say his demeanor is worse than that of a dictator is pretty bad. Now, let's all go watch the clip of Grant's appearance, and try to pick out all the times it's clear in Stewart's face that he absolutely hates this guy. Our running tally: Six.