Hollyoaks has revealed that the return of the Ashworths to the soap will also see Darren (Ashley Taylor Dawson) reunited with his two twin children.
"I'm so excited to be joining the cast of Hollyoaks, it still hasn't sunk in!" said Smith, who has previously had a guest part in Coronation Street. "You should expect a lot of ups and downs with Frankie but all I'll say is, don't judge her too soon..."
Mulvey added: "I'm buzzing to join the cast of the Osbourne family. JJ is charismatic, sporty and a proper mummy's boy who knows exactly how to get what he wants."
Hollyoaks continues weekdays on Channel 4 streaming and E4.
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