Marc Stevens (actor)
Marc Stevens( September 2, 1943 – January 28, 1989), was an American erotic performer.
He is sometimes credited as Mark' 10 ½' Stevens or Mark Stevens.
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.
Mark Roberson
Mark W. Roberson( born 13 March 1967) is a retired English javelin thrower.
He represented England at four successive Commonwealth Games between 1990 and 2002.
He won the silver medal at the 1986 World Junior Championships, finished sixth at the 1990 Commonwealth Games, seventh at the 1994 Commonwealth Games, sixth at the 1998 European Championships, fourth at the 1998 Commonwealth Games and sixth at the 2002 Commonwealth Games.
Roberson was twice national champion after winning the 1997 AAA Championships and the 2001 United Kingdom Championships in Athletics.
His personal best throw was 85. 67 metres, achieved in July 1998 in Gateshead.
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.
Miloš Zličić
Miloš Zličić( born 29 December 1999) is a Serbian football forward.
He is a younger brother of Lazar Zličić.
Geovanis Cassiani
Geovanis Cassiani Gómez( born January 10, 1970, in Turbo, Antioquia), known as Geovanis Cassiani, is a retired male football defender from Colombia.
He played for the Colombia national football team at the 1992 Summer Olympics in Barcelona, Spain, wearing the# 13 jersey.
Cassiani also was a member of the 1990 FIFA World Cup squad.
In Argentina, he played 10 matches in Rosario Central, in the 1998/'99 season.
He is the younger brother of Francisco Cassiani.
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.
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.
Vadim Vlasov
Vadim Nikolayevich Vlasov( born 19 December 1980) is a former Russian football player.
He is a younger brother of Dmitri Vlasov.
Francisco Cassiani
Francisco Cassiani Gómez( born April 22, 1968 in Arboletes, Antioquia), known as Francisco Cassiani, is a former Colombian footballer who has played for clubs in Colombia, Argentina, Peru and Chile.
He is the older brother of Geovanis Cassiani.

Question: Who is younger, Geovanis Cassiani or Mark Roberson?
Answer: Geovanis Cassiani