Lieutenant Kelly was a male Human Starfleet officer who served aboard the USS Enterprise-E as a tactical officer in 2379.

In that year, Kelly took the tactical console during the engagement in the Bassen Rift after a Reman assault party boarded the ship. (Star Trek Nemesis)

He was played in an uncredited cameo role by Bryan Singer, who directed Patrick Stewart's performance in the sci-fi/fantasy film X-Men.
The Star Trek Encyclopedia (4th ed., vol. 1, p. 410) identified this character as "Kelly". He was recognized as a fan of Star Trek.
The Energize expansion of Decipher's Star Trek Customizable Card Game named this officer Relief Tactical Officer Kelly (β), and listed that, like Julian Bashir, he was a genetically-enhanced result of a medical procedure on Adigeon Prime, leaving him with "uncanny" abilities. This reportedly stemmed from an inside joke on the set about the "uncanny", "mutant" abilities he must possess based on his work adapting the mutant comic book stories in The Uncanny X-Men.
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