Viewers will soon see Jessie Wallace swap Kat for Pat when she stars in a drama about the birth of Coronation Street.
The London-born actress, best known for playing Walford's Kat Moon, will be seen as Corrie legend Pat Phoenix (aka Elsie Tanner) in the new BBC drama.
And William Roache, who starred with Pat in the early days of the Weatherfield serial, has admitted he was a bit taken about by the casting - because of the actresses' very different accents.
"I must admit I was a little surprised when I heard it was Jessie Wallace simply because she's Cockney London, and Elsie was very much Lancashire," he said.
"But I met her and said 'are you enjoying it?' and she said 'I'm loving it', and I'm sure the performance is going to be absolutely brilliant."
The 78-year-old's son James Roache has been cast in the role of a young William Roache in the one-off show. Get set to do a lot of double takes!