The actress - who currently plays Tilly Evans in Hollyoaks - will take the lead role at the Norwich Theatre Royal's festive panto.
The former Waterloo Road star is joined by comedian Andrè Vincent, who returns to the theatre for a fourth year running.
The play will run from December 18 to January 19, reports EDP24.
Norwich Theatre Royal's John Bultitude said: "The two latest casting announcements are going to help make this year's show one to remember.
"We are really excited to be welcoming Lucy to the city to star in the festive spectacular. Add André into the mix with his distinctive brand of off-the-wall comedy and Aladdin looks like being a panto to remember once again. Oh yes it does!"
Tickets for the panto can be purchased via the theatre's box office.
Lucy Dixon recently filmed on-location in Wales for special Hollyoaks episodes in Abersoch.