<P> In television, a regular, main or ongoing character is a character who appears in all or a majority of episodes, or in a significant chain of episodes of the series . Regular characters may be both core and secondary ones . </P> <P> A recurring character often and frequently appears from time to time during the series' run . Recurring characters often play major roles in more than one episode, sometimes being the main focus . </P> <P> A guest character is one which acts only in a few episodes or scenes . Unlike regular characters, the guest ones do not need to be carefully incorporated into the storyline with all its ramifications: they create a piece of drama and then disappear without consequences to the narrative structure, unlike core characters, for which any significant conflict must be traced during a considerable time, which is often seen as an unjustified waste of resources . There may also be a continuing or recurring guest character . Sometimes a guest character may gain popularity and turn into a regular one . </P> <P> In the earliest surviving work of dramatic theory, Poetics (c. 335 BCE), the Classical Greek philosopher Aristotle deduces that character (ethos) is one of six qualitative parts of Athenian tragedy and one of the three objects that it represents (1450a12). He understands character not to denote a fictional person, but the quality of the person acting in the story and reacting to its situations (1450a5). He defines character as "that which reveals decision, of whatever sort" (1450b8). It is possible, therefore, to have stories that do not contain "characters" in Aristotle's sense of the word, since character necessarily involves making the ethical dispositions of those performing the action clear . If, in speeches, the speaker "decides or avoids nothing at all", then those speeches "do not have character" (1450b9--11). Aristotle argues for the primacy of plot (mythos) over character (ethos). He writes: </P>

Which of the following is a greek work meaning character