Well, first answer is call your business rep and see what they have to say, since they will ultimately have the final say anyway if somebody in your cast is unhappy with whatever decisions are made.
Then, I would probably use Rule 60-D as my basis for how to proceed, though that rule seems to be more about recording actual performance footage as opposed to interviews (which is why I say check with your business rep).
This is all based on my own experience with the URTA contract (some years ago now) and looking at the current rulebook on the Equity website, which does say it expired back in February, so you may have some slightly different language in the new contract (if they've finished finalizing it by this point).