Malcolm David Kelley (born in Bellflower, California) is an American actor best known for his role as Walt Lloyd on the television drama series Lost.
He also starred in the 2004 film You Got Served, as Lil' Saint.
He has made guest appearances on For Your Love (his screen debut in 1998), Malcolm In The Middle, Girlfriends, Judging Amy, Eve, Law & Order: Special Victims Unit and My Name Is Earl.
Kelley has also acted in the 2005 made-for-TV movie Knights Of The South Bronx, and in the feature film Antwone Fisher (2002), in which he played the young Antwone Fisher.
Kelley spent the first 11 months of his life in foster care before being adopted by the Kelleys. His sister, Sydney, was adopted by the family two months later.
He enjoys playing soccer and basketball, despite his small stature.