American actor who first gained fame for his role as Fuller McCallister in the Home Alone series alongside his brother Macaulay Culkin. He was nominated for a Golden Globe for his role in the 2002 feature Igby Goes Down. In 2017, he starred in the film Infinity Baby.
He plays the character Matty Banks in the 1991 film Father of the Bride and the film's 1995 sequel Father of the Bride Part II.
Apart from Macaulay, he has three other brothers named Shane, Christian and Rory as well as a sister named Quinn. Kieran married Jazz Charton in 2013, and they have a daughter who was born on September 13th, 2019.
He had a role in the film She's All That, which starred Freddie Prinze Jr.