Jack Black, born Thomas Jacob Black, is a highly energetic and versatile American actor, comedian, musician, and songwriter. Best known for his boisterous personality and comedic timing, Black has starred in numerous films including "School of Rock," "Nacho Libre," and the "Kung Fu Panda" franchise. Beyond acting, he is the lead vocalist and guitarist of the comedy rock duo Tenacious D, alongside Kyle Gass, achieving significant success with their humorous musical performances and albums. Black's infectious enthusiasm and diverse talents have made him a beloved figure in both the film and music industries.