Ensign Cheney was a Starfleet command division officer stationed on board the USS Enterprise-D in 2369.
Cheney was an accomplished cellist who performed Chopin's Trio in G minor in Ten Forward with Data at the violin and Nella Daren at the piano. Data congratulated Cheney for her part in the performance at the concert's after-party. (TNG: "Lessons")
Ensign Cheney was played by professional cellist Jan Kelley who received no credit for this appearance.