Lieutenant Ottessa Warren was a female Trill Starfleet command division officer assigned to the USS Oakland.
In 2380, on stardate 57752.6, she accompanied Captain Amina Ramsey on her temporary transfer to the USS Cerritos along with Lieutenants Durga and Drew Prachett. (LD: "Much Ado About Boimler")
Warren was present on the bridge of the Oakland when the ship was at Douglas Station in 2381. (LD: "The Stars At Night")
Warren was voiced by Vanessa Marshall.