Miloš Zličić
Miloš Zličić( born 29 December 1999) is a Serbian football forward.
He is a younger brother of Lazar Zličić.
Louis Sorin
Louis Sorin (September 23, 1893 – December 14, 1961) was an American actor.
Anton Shunto
Anton Shunto( born 31 May 1988) is a Belarusian professional footballer.
As of 2019, he plays for Molodechno.
He is a younger brother of Denis Shunto, who is a founder and former president of Krumkachy Minsk.
Jun-seong Kim
Jun-seong Kim  (also credited as Jun Sung Kim, Jun Kim or Brian Kim; born October 4, 1975) is a Korean-American actor.
He is perhaps best known for his role as Mike Juhn in the 2007 crime film "West 32nd" (2007), directed by Michael Kang.
Roman Smishko
Roman Smishko is a retired Ukrainian professional footballer who played as a goalkeeper.
He is a younger brother of Ukrainian defender Bohdan Smishko.
Markus Weissenberger
Markus Weissenberger( born March 8, 1975) is an Austrian former footballer who played as a midfielder.
He is a younger brother of former Austria international player Thomas Weissenberger.
Dmitri Varfolomeyev (footballer, born 1978)
Dmitri Nikolayevich Varfolomeyev( born 15 March 1978 in Leningrad) is a former Russian football player.
He is a younger brother of Sergei Varfolomeyev.
Vadim Vlasov
Vadim Nikolayevich Vlasov( born 19 December 1980) is a former Russian football player.
He is a younger brother of Dmitri Vlasov.
Brian Keast
Brian Keast( born 27 November 1953) is a Canadian former cyclist.
He competed in the team pursuit event at the 1972 Summer Olympics.
Alan Chipp
Alan Chipp( born 9 January 1937) is a former Australian rules footballer who played for the Fitzroy Football Club in the Victorian Football League( VFL).
He is a younger brother of politician Don Chipp.

Question: Who is younger, Brian Keast or Louis Sorin?
Answer: Brian Keast