**Mark Ruffalo** (born 1967 in Kenosha, Wisconsin) is an American actor and film producer known for his versatility and ability to portray complex, nuanced characters.

He initially gained recognition with dramatic roles, such as in *You Can Count on Me* (2000), which earned him widespread acclaim. His career has been studded with acclaimed performances in films such as *Zodiac* (2007), *The Kids Are All Right* (2010), for which he received an Oscar nomination, and the award-winning *Spotlight* (2015).

He rose to global fame for his role as Bruce Banner/The Hulk in the Marvel Cinematic Universe (MCU), appearing in numerous Avengers films. Ruffalo is praised for his ability to infuse humanity and vulnerability even into intense or tormented characters, ranging from deep drama to comedy, often playing the common man grappling with moral dilemmas or internal conflicts.