Ever heard of the Funk Brothers? Ever heard of the Wrecking Crew? All kinds of famous musicians owe their career to these un-known backup musicians. It happens all the time.
All of this, of course is a copy of a much more realistic British Series, Upstairs Downstairs, which was on the air from 1971 to 1975. If you like Downton Abbey, go watch Upstairs Downstairs to see how the original story lines were played.