What is the role of Choragos in Oedipus Rex?

In , the Choragos is the

"leader" of the .  Normally, thespeaks in unison in Greek plays; however, there
are
times when a single member of the chorus is employed to serve as a voice
of the people.
 In  Rex, the Choragos is a lead elder
who makes comments during the scenes
relating to ethical implications that
arise. For example, in Scene 3, the Choragos tells Oedipus
that he would do
well to trust the word of the shepherd, and later in Scene 4, the Choragos

confirms that the shepherd was indeed one of Laius's men. The support of the Choragos
is
important because Oedipus still has doubt about elements of the prophecy.
But Oedipus has
misplaced his doubts--rather than looking inward, he fears
that others are trying to deceive
him. The Choragos is there to remind him
that he should not fear the word of good
men.