Randy Castillo was a renowned American rock drummer, best known for his long tenure with Ozzy Osbourne's band. Castillo's powerful and dynamic style defined many of Osbourne's most successful albums in the late 1980s and early 1990s. After leaving Osbourne, he later joined the iconic glam metal band Mötley Crüe, replacing Tommy Lee. Tragically, his career was cut short when he passed away from cancer in 2002, leaving a lasting legacy in the world of rock music.