Charles and Ralph Fiennes in Pravda (video source)
Charles played Michael Quince in an excerpt from Pravda (video here) at the National Theatre's 50 years on stage performance.
The program for the event contains some reflections about the venue, including this one from Charles (via his Twitter, @cedwardsactor)
During the closing moments of All My Sons in the Cottesloe, those of us who weren't on stage were peering through the curtains at Arthur Miller, who was watching his play, rapt, mouthing the final words as they were spoken, 50-odd years after he had written them. In the Green Room afterwards we gathered round him to soak up whatever wisdom he could impart. In time he finished his drink and got up to leave with his wife, and we all one by one started to produce posters, copies of Timebends and programmes for him to sign, like the starstruck kids we were.
Screencap of Charles from A Young Doctor's Notebook
He will be in the next series of A Young Doctor's Notebook; he briefly appears in the trailer (via @BakerStBasilisk).
A picture of Charles and Chris Addison accompanies an article about filming for Trying Again.