In what has already been a celebratory year that has seen old faces such as Tom Campbell-Gore return to Holby City, that is set to continue when more faces make a comeback.

Coming back for a total of five episodes, Elliot visits the hospital to see his old friend and protégé Jac, or so he tells her, but it won’t be long before his ulterior motive is unveiled and his old colleagues discover the real reason behind his return.

Also returning for a special episode is Patricia Potter is also set to reprise her role as Diane Lloyd which will go beyond the realms of the hospital into very different territory for the programme. Last seen in 2007, one or two of Diane’s colleagues will be rather surprised to see her again, to say the least.

The hugely popular storyline of the Tan twins is also going to be revisited. Last seen on screen in 2008 as the memorable conjoined twin babies, the now 11 year old patients will come back to the ward where their life changing separation surgery took place.

From the start we were determined that our anniversary year should not only feature returning regular cast but also an iconic guest or guests. Viewers still talk about the Tan Twins who, at the time, completely transformed the scope and ambition of the way we tell guest stories.  Seeing them all grown up, with their mum, and reunited with their saviour Ric just when he needs them most is a real tear jerker, and I can’t wait for the audience to see it.”

On the anniversary returns, Simon Harper, Executive Producer of Holby City and Casualty says: “How could we possibly celebrate Holby’s 20th anniversary without a return stint from one of our most beloved characters?  Elliot was the heart and soul of the hospital and the nearest thing to a father Jac has ever had – and her desire to please and prove herself to him at a particularly fraught time will have huge emotional consequences in our climactic story for 2019.  I’m so delighted to welcome the glorious Paul Bradley back to his Holby family, and I also know just how hungry the audience have been for this moment, so it’s wonderful to finally see it happen.

With Patsy Kensit and Luke Roberts re-joining the cast as Faye Morton and Joseph Byrne later this year is certainly shaping up to be a memorable one.

Holby City continues Tuesday 9th July on BBC One