Keen Ruffalo is Mark Ruffalo and Sunrise Coigney’s firstborn. He is their only son.
Keen tried his hand at acting and landed his first role in Begin Again movie. Later, he had an uncredited part as Sakaaran Citizen in Thor: Ragnarok. Besides, the young man is an Instagram star with over 10K followers.
Keen accompanied his stellar dad to many events. For instance, he attended the premieres of Now You See Me in 2013, Spotlight in 2015 and Avengers: Endgame in 2019.
A curious fact: in one of his interviews, Mark shared that it was Keen’s rage that inspired his Hulk performance.