Kyran replaces twin brothers Jaxon & Maddox Beswick who both played young Jack Webster previously.
Jack was born in September 2010, which makes him five years old.
In scenes filmed this week in Blackpool, Kyran has been working with the cast. He stars in a storyline featuring Jenny Bradley saving his life when she's in Blackpool on a date with Johnny Connor. You can find out more here.
We'll first see Kyran as Jack Webster on screen on Wednesday 11th May.
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