 KillerMovies | The Lowdown on 'The Meltdown' Washington Post - John Leguizamo is an actor equally skilled at being silly or serious in his roles. You probably know him best as the voice of Sid the sloth in "Ice Age," while your parents might know him from movies or his current role on the TV show "ER. Manny, Sid and Diego Face a Meltdown ?Ice Age? sequel is a riot |