Robert Downey Jr. is an American actor who has had a career characterized by critical success in his youth, followed by a period of substance abuse and legal troubles, and a surge in popular and commercial success later in his career. He has struggled with addiction and legal troubles, including being arrested for possession of heroin, cocaine, and an unloaded .357-caliber Magnum, and skipping court-ordered drug tests. Downey Jr. was sentenced to three years in prison in 1999, served 15 months in state prison in Corcoran, California, and was released on the condition of posting bail. He has since maintained his sobriety and has become one of the most down-to-earth and likable actors in Hollywood. Despite starring in one of the most financially successful movies ever made, Avengers: Endgame, his career has been rather quiet since then. In a recent video shared on Instagram, fans expressed concern regarding his health, as he looked noticeably thinner than usual.