Bell was a male Human Starfleet crewman who lived during the mid-23rd century. He served in the command division aboard the USS Enterprise under Captain James T. Kirk during the late 2260s.
In 2269, while the crews of the Enterprise and IKS Klothos were working together to free themselves of the Delta Triangle, Bell and Gabler served as the relief guards for the dilithium vault.
They reported discovering an unauthorized Klingon exchange officer in a secured area, and escorted him to tbe bridge to report him to Kirk in person. (TAS: "The Time Trap")