Mark Ruffalo is an American actor, producer, and director, born on November 22, 1967, in Kenosha, Wisconsin. He gained fame for his roles in films such as The Avengers, where he portrays the character Hulk, and Spotlight, which earned him an Academy Award nomination. Ruffalo is known for his versatility and ability to take on both dramatic and comedic roles. In addition to acting, Ruffalo is an environmental activist and co-founder of the Solutions Project, which promotes renewable energy. He has been involved in various charitable efforts and often uses his platform to raise awareness about social and environmental issues.