Sutton Ross said: "She usually does do Thursday matinees. I don't think there was anything dishonest about it, perhaps she warmed up and could not perform. But, I know that's a rule for them to have to tell people there is an understudy, either on the board in the lobby, in the playbill, or over the loud speaker. It's unfortunate you didn't see her, but she just isn't known for her stellar attendance record, she keeps getting hired though so I don't think people mind, she's an incredible talent."
They do it better (generally) on broadway than the west end I think, because from my experience they tend to put slips in the playbills when there are cast changes on broadway (except in this case it seems) but in the west end it tends to be just the cast board in the theatre which most people probably don’t even see! Also there’s the added protection with “above the title” performers on broadway, which again isn’t a thing on the west end, so if an “above the title” performer is scheduled to be off the ticket sites will let you know before you buy the tickets. Again, not in the west end. So on the west end you’re basically left with whether or not the specific show is good at pre announcing when understudies will be performing. Some are but some aren’t. Waitress London, for example, never announces the schedules of the leads so you usually only find out on the day, unless an actor announces it themselves. It’s frustrating when trying to plan around seeing certain Jennas. Lucie Jones has been absent quite a lot and I really want to see Sarah O’Connor who is the understudy, before the show closes, but I’ve never found out she’s on in enough time to plan a trip!
Sorry veering wildly OT!