Sherrie Hewson, who played Maureen Holdsworth in Coronation Street, will be starring in the new one-off episode of Are You Being Served?.
The sitcom hit created by Jeremy Lloyd and David Croft is to return this summer for a one-off special. However, if the special proves popular with audiences, a full series could follow.
It will be written by Benidorm creator Derren Litten.
BAFTA-winner Jason Watkins (Trollied) is to star in the programme as Mr Humphries, the camp character made famous by John Inman. Sherrie Hewson (Benidorm) will take over as Mollie Sugden's Mrs Slocombe.
The BBC say: "It's 1988 and Young Mr Grace is determined to drag Grace Brothers into, well 1988, but he has a problem on his hands.
Roy Barraclough, who played Coronation Street's Alec Gilroy will also join the cast as Mr Grainger.
Deirdre: A Life on Coronation Street - official ITV tribute to a soap icon. Available here.
Follow the Bluenose CorrieBlog on Twitter and Facebook