Does this count a 'narrator'?

I was watching a docu-drama type film, and there are two characters that are also credited 'narrator'. The first introduces himself by his character name at the beginning of a segment and then narrates much of it (as the character). I didn't see him appear during the segment. The second character credited as 'narrator' introduces himself by his character name at the beginning of a segment, appears in the segment as that character, and then narrates it as well (as the character). In this case, he appears in the segment as that character. Their names appear in the credits of the film but only as 'features' with no character name or attribute beside their names. It doesn't sound right to list them as narrators, especially the second one. Are they narrators?