Mark Allen Shepherd, in addition to his regular role as Morn, appears as a Bajoran officer whom Quark asks to sit in Morn's usual place at the bar. He first appears in an overhead shot at 7:02, then at 7:36 when Quark brings him over to sit, and is seen continuing to sit in "his" usual place in several subsequent shots.
The matador painting in Morn's quarters is the object he bought from Quark's auction in In the Cards (1997).
Quark reveals that 'latinum' is a liquid, which is why it is 'pressed' inside of gold.
In the episode several characters mention how talkative and emotional Morn was. However, throughout the entire series Morn never uttered a word.
Along with Quark, Q, and Evek, Morn is one of only four characters to appear in all three Star Trek series based in the 24th century: Star Trek: The Next Generation (1987), Star Trek: Deep Space Nine and Star Trek: Voyager (1995).