In the briefing about the Ares, Riker learns of the first officer, Commander Flaharty, who has a flair for languages. Captain Picard calls it a "unique ability of instantaneously interpreting and extrapolating any verbal communication.". This ability is resurrected in the fifth Star Trek series, "Enterprise" (2001) in the character of Ensign (later Lieutenant) Hoshi Sato.
John Tesh: erstwhile host of Entertainment Tonight (1981) appears as the Klingon K'Tesh in Worf's Ascension Chamber on the holodeck. His appearance was heavily featured in "Entertainment Tonight" at the time.