William Russ is an American actor and television director. He played Alan Matthews on the sitcom Boy Meets World (1993–2000) and appeared in the television series Wiseguy, the soap operas Another World and The Young and the Restless and the feature films The Right Stuff (1983), Pastime (1990) and American History X (1998).

Boy Meets World is an American coming-of-age sitcom created by Michael Jacobs and April Kelly that aired on ABC for seven seasons between September 1993 and May 2000. The series centers on Cory Matthews and his friends and family, as he progresses from childhood to adulthood. Episodes chronicle the everyday events of Cory's home and school life; his teacher and neighbor George Feeny delivers life lessons as Cory learns to cope with social and personal issues of adolescence. Cory has strong relationships with his older brother Eric, younger sister Morgan, and parents, Amy and Alan. Cory's friendship with Shawn Hunter and romantic interest in Topanga Lawrence serve as central focuses of episodes. Overarching themes include a focus on family and friendships as well as discovering one's identity. Further characters were introduced in later seasons; Jonathan Turner, Eli Williams, Jack Hunter, Angela Moore and Rachel McGuire.