Although it is frequently stated that a Vulcan named Doctor Selar is one of the most important members of Beverly Crusher's medical staff, the two are never seen together. In fact, Selar, played by Suzie Plakson, only appeared once in the entire series, in season two, episode six, "The Schizoid Man", during Gates McFadden's hiatus year, when Kate Pulaski (Diana Muldaur) was the ship's Chief Medical Officer.

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