Hagen began his career with Rangers, where he played 20 competitive games, before moving to Hearts.
He stayed for five years, making over 100 appearances for the Bairns including the 1997 Scottish Cup final.
He scored the only goal in the 1997 Scottish Challenge Cup Final win versus Queen of the South.
This was to be his last senior club, before he joined junior side Bo'ness United in 2006, where he played for a year before retiring.
This biographical article related to association football in Scotland, about a midfielder born in the 1970s, is a stub.