In November 2008, Russell returned to the Fort Wayne Mad Ants where he went on to average 16.1 points and 10.8 assists per game in 2008–09.
2009–10 season
In July 2009, Russell joined the NBA D-League Select team for the 2009 NBA Summer League. He later signed with Lukoil Academic of Bulgaria for the 2009–10 season but was later released in January 2010 after appearing in 10 games. In February 2010, he joined Piratas de Quebradillas for the 2010 BSN season but was released by the club in March after just seven games.
2010–11 season
On August 6, 2010, Russell signed with the Gießen 46ers of Germany for the 2010–11 season. He was later released by the club before appearing in a game for them. On October 30, 2010, he was reacquired by the Fort Wayne Mad Ants and went on to play 37 games for the club in 2010–11. On February 28, 2011, he terminated his contract with Fort Wayne and signed with the Zhejiang Lions for the 2011 CBA playoffs.
2011–12 season
In July 2011, Russell joined Leones de Santo Domingo for the 2011 LNB season. He went on to help Leones win the 2011 championship. After starting the 2011–12 season with the Fort Wayne Mad Ants, Russell signed with the Detroit Pistons on December 12 following the conclusion of the NBA lockout. However, he was later waived by the Pistons on December 21 and returned to Fort Wayne. Then, on January 20, Russell re-signed with the Pistons for the rest of the season.
2012–13 season
In July 2012, Russell joined the New York Knicks for the 2012 NBA Summer League. On October 1, 2012, he signed with the Oklahoma City Thunder. However, he was later waived by the Thunder on October 22, 2012. In November 2012, he was once again reacquired by the Mad Ants. On December 27, 2012, he was traded to the Reno Bighorns. On April 19, 2013, he signed with Cocodrilos de Caracas of Venezuela.
2013–14 season
In July 2013, Russell re-joined Leones de Santo Domingo of the Liga Nacional de Baloncesto. On September 1, 2013, he signed a one-month contract with Galatasaray of the Turkish Basketball League. He left the club following his contract's expiration before playing in a game for them. On February 27, 2014, he was reacquired by the Reno Bighorns. In May 2014, he signed with Leones de Santo Domingo for the 2014 season, returning to the club for a third stint.
Russell is the son of former NBA player, Walker Russell Sr., who played six seasons in the NBA during the 1980s. Both father and son started their NBA career with the Pistons. Russell's first son, Aiden Jake, was born on February 25, 2012.