Jackman made his NHL debut during the 2003–04 season with Columbus, and has also played for the Phoenix Coyotes, Los Angeles Kings, New York Islanders, Calgary Flames and Anaheim Ducks.

[2] Jackman chose to forgo his final two years of college eligibility, signing a contract with the Blue Jackets in the summer of 2002,[3] and went on to become the school's first alumnus to play in the NHL.

[5] He made his NHL debut on December 20, 2003, in a game against the Minnesota Wild,[6] and scored his first goal, assist and points on February 27, 2004, in a 4–3 victory over the Chicago Blackhawks.

[11] Jackman again led the Islanders in penalty minutes in 2009–10 with 98,[5] and celebrated his birthday on November 14, 2009, by scoring a goal 16 seconds into the contest against the Florida Panthers.

[15] In the 2015–16 season, Jackman played in two games with the Ducks before he was placed on waivers and reassigned to their AHL affiliate, the San Diego Gulls on November 3, 2015.

[16] In the following off-season, Jackman opted out of contract to end his professional career, returning to Minnesota State University to complete an Education degree and contribute to the Coaching staff with the Mavericks.