"Grogs" in Ars Magica.Similarly, Ars magica had its "minions" (frogs? I forget) basically muggles and each player had one mage and one or more minions and any given arc might only have one or two playing mages and the rest muggles and it rotates around as arcs end and new ones start ( oversimplified).
But I doubt that's what the poster actually meant by the sound byte.
I'm not sure which version of Ars Magica I'm thinking of, but in my recollection the grogs are more like common property. But players might alternate between playing mages or "companions".
But I agree that I don't think the poster had that sort of "troupe" play in mind.