Hansen went on to serve as a full-time missionary for the Church of Jesus Christ of Latter-day Saints in Santiago, Chile, for two years.

He finished with a 44–1 home record (all-time best in BYU history), won two MWC championships, and was selected with the 8th pick in the 2nd round in the NBA draft.

His draft class included players LeBron James, Dwyane Wade, Carmelo Anthony, and Chris Bosh.

His final NBA game was played on April 14, 2004, in a 132–137 loss to the Boston Celtics where he recorded 13 points, 6 rebounds, 4 assists, 1 steal and 1 block.

In 2006, the ULEB Cup (now called EuroCup Basketball) champions Dynamo Moscow signed Hansen on a two-year contract.

[5] After helping his team reach the EuroLeague's Top-16 and averaging 15 ppg, he was placed on the injured list for the rest of the season after suffering a torn Achilles tendon.

[6] In 2007, Hansen helped Dynamo take third place in the ULEB Cup (EuroCup Basketball) and averaged 17.5 ppg, 3.3 rpg while shooting 56.4 FG and 46.3% 3PT.

In 2008–2009, Hansen, coached by David Blatt, again led Dynamo to the EuroCup final four in Turin, Italy, averaging 16.4 ppg.

In April 2011, Hansen helped his team win the VTB United League championship by hitting five free throws in the last seconds of the game.

Hansen and his family are active members of The Church of Jesus Christ of Latter-Day Saints, in which Hansen has served as a temple ordinance worker, high councilor, ward mission leader, elders quorum president, bishop, stake presidency counselor, and missionary in the Santiago West Chile mission.

[10] After visiting orphanages in Moscow, Russia, Hansen and his wife LaRee founded the Little Heroes Foundation in 2007.

Brigham Young University gave Hansen the 2015 Distinguished Alumni Award for his work with Sunshine Heroes.

The foundation has built 10 children's centers around the world including in Nepal, Africa, Russia, Thailand, Panama, Dominican Republic, and Nicaragua.