[1] As a senior in 2010–11, he averaged 22.1 points, 16.2 rebounds, 4.5 blocks, 2.0 steals, and 1.5 assists, leading North to a Metro Region championship and the Class 5A quarterfinals.

For his play with the Rockets in Las Vegas, he earned All-NBA Summer League Second Team honors.

[5] On July 25, 2015, Williams signed a one-year deal with the Qingdao DoubleStar Eagles of the Chinese Basketball Association.

[8] He made his NBA debut on March 17 during a 103–69 loss to the Utah Jazz, recording one point and one steal in two minutes.

[20] On February 24, 2017, he scored a then season-high 16 points on 8-of-9 shooting in 15 minutes off the bench in a 128–121 overtime loss to the Chicago Bulls.

[24] On March 9, he had 16 points and 10 rebounds for his fifth straight double-double off the bench in a 122–110 loss to the Los Angeles Lakers.

Under the terms of the deal, he split his time between Brooklyn and their NBA G League affiliate, the Long Island Nets.

[43] On August 13, 2019, Williams signed with Lokomotiv Kuban of the VTB United League for the 2019–20 season.

[47] On August 5, 2022, Williams signed with the South East Melbourne Phoenix in Australia for the 2022–23 NBL season.

[51] He went on to average a league-leading 10.9 rebounds per game before being ruled out for the rest of the season on January 19, 2024, with another knee injury.

[53] On June 12, 2024, Williams signed with the Goyang Sono Skygunners of the Korean Basketball League.

[57] Williams' father, Cody Sr., is a Justice of the Peace for Maricopa County,[7] while his mother, Jeri, is the Chief of Police in Phoenix.