Kieran Kyle Culkin was born September 30, 1982, and started working in 1990. He worked with his brother, Mac several times. His debut was playing Mac's cousin, Fuller, in Home Alone (1990). He went on to do lots of films on his own. He starred in Father of the Bride (1991) playing Steve Martin's young son. Then a few years later they offered him a special role in Mighty, The (1998). After his wonderful performance, he went on to bigger movies like Cider House Rules, The (1999) and Music of the Heart (1999).