At last I am able to tell people something I've known for a while now.
The contract is signed and Ex-Eastenders star, Michelle Collins, is to play Fred's wife in the play. It's a terrific coup for the Octagon and for The Demolition Man too.
Sheila Dibnah herself texts me when she hears the news -
'That is TOTALLY FANTASTIC! Wow!'
She's a tad pleased, then.