I don't listen anymore - not since THAT episode killing off Nigel, I know a lot of them do voice-overs for adverts - and are in quite a few radio plays on Radio's 4 and 7. Some do theatre work, others write books...there's a new series going to start up very shortly called something like Archer's Extra, it's going to feature characters we hear about but don't have a voice on the regular show. Like Freda Fry....Mr Pulle, Sabrina Thwaite...I suppose