[Brekkie]

As many of the SNL team also do movies and as the show contains sketches I'd be surprised if they weren't part of the screen actors guild- and even if they weren't the SAG would probably think they should be and put huge pressure on them. Also the issue of guest hosts aswell.

As we've seen with the daytime talk shows it only takes one person to be part of the union for the show to be under huge pressure not to return, regardless of whether the rest of the cast and crew are covered by them or not.