Short of actual actorfics (which don't seem to have reared their ugly heads mych recently), now & in the past, most references I've noticed tend to be harmless humourous little injokes in which, say, M or S discovers an old magazine in which the other appears in an embarassing photo identical to one of DD or GA's.

Frank Connor look the news stoically and, except for a sudden and nearly unnoticed grimace, with no outward show of emotion.

It was a curious sort of a feast, I reflected, in appearance indeed, an entertainment of the Barmecide stamp, for there was absolutely nothing to eat.

Left her in her tears, and dried not one of them with his comfort; swallowed his vows whole