Cyril and Frank: modern age chorus
Cyril and Frank are basically the chorus or some kind of chorus for show, at least in season one. They don't have much back story except that they are veteran, entrenched thespians who have slugged it out with colleagues such as Geoffrey, Ellen, and Oliver. They provide some glue or feedback that saves the audience some guess work. They offer quirky, comical bits of insight of one character or another, and they always usher in and out each episode with an appropriate music hall style song, letting us know about the main goal in each season, the ongoing struggle to bring whatever Shakespearean work to the stage without going completely mad and selling themselves to mediocracy.
What doesn't kill you, can make you stronger or leave you crippled.
--Brenicus