Black also takes part in the opening salvo of the film's war between Earth and Mars, a 'cultural misunderstanding' during which Billy Glenn is incinerated - before a live television audience that includes his doting parents - by a Martian ray gun after attempting to defend himself with the American flag. As army grunt Billy Glenn Norris, he's positioned as the foil to humanity's eventual savior, his slacker brother Richie ( Lukas Haas). Within the interplanetary scope of Mars Attacks!, Black's role is small but crucial. The actor's burly voice is the ideal fit for the King of the Koopas, with just the right capacity for the misplaced romantic longing that drives his ploy to marry Princess Peach - or destroy the Mushroom Kingdom trying.ĮW's Christian Holub agreed: 'Black's performance is the standout of this voice cast (which makes sense given his years of experience in the Kung Fu Panda franchise), and Bowser's many parody songs expressing his love for Peach make great use of the Tenacious D vocalist's unique skills.' This rare villainous turn for Black allows the actor to explore the sinister side of his signature theatrics, embodying a larger-than-extra-life threat that gives stakes to the film's direct-from-the-games set pieces. But Black's casting as the Nintendo plumbers' eternal nemesis, Bowser, was not one of them. Some questionable decisions were made along Mario and Luigi's path back to the big screen.