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- See Chang for other articles with titles that contain, either by relationship or by coincidence, this character's surname.
Chang was a Human man in Starfleet in the late 23rd century. As of the year 2296, he held the rank of ensign, and served as a bridge officer of the Federation starship USS Intrepid II under Captain Spock. Chang was the first to detect the anomalous sensor reading indicating a cloaked Romulan vessel in the Loki star system. (TOS novel: Vulcan's Forge)