shimerman is known for his work as the ferengi bar owner quark in the long-running television series "", though his involvement with the "star trek" franchise began with appearances as other ferengi characters in the "" episodes "the last outpost" and "peak performance". as the character quark, shimerman became one of star trek's most widely known characters, and he appeared several times on the cover of "tv guide", either with other actors or alone as part of a collector's series. he says that his favorite episode of deep space nine is "" as it was the only episode where he is shown captaining a ship.