Premise: Neelix is a character in the science fiction television series "", played by actor Ethan Phillips since the series' inception. Neelix is an alien native to the distant far side of the galaxy, who has joined the crew of the United Federation of Planets starship USS "Voyager" as cook after its being captured by a mysterious shock wave to the Delta Quadrant.
Hypothesis: Neelix was in every episode of the show.