Airman Chu is a member of the United States Air Force, and served at Icarus Base. In 2009, he was forced to evacuate the base with 80 others, when the base was under attack and ended up stranded on board Destiny several billion light years away. Chu was present during an argument between Eli Wallace and Dr. Nicholas Rush in the Gate room.
- In an alternate timeline, he chose to return to Earth with everyone else but like everyone else except for Colonel David Telford, didn't make it to Earth and was presumed dead. However, he ended up on a planet that he and other survivors called Novus, 2,000 years in the past. (SGU: "Twin Destinies", "Common Descent")