Guy Henry hopes the 'Casualty' and 'Holby City' crossovers can change the public's perception of both shows.

Guy Henry

Guy Henry

The 58-year-old actor - who plays Henrik Hanssen in the latter - has suggested the two medical dramas are undersold by a lot of people, and the upcoming special episodes might be a chance to show what both teams can do.

He told Digital Spy: "I think people -- like myself, as I said earlier, when I came into it, and found how good it could be, I was surprised.

"I bet if you cobbled together some bits of some of the very best of it - not all the time, of course, but some of the very best of it, and you showed it to some people who have not seen it, they might be very surprised about the standard.

"So yes, I do think it does get a bit ignored, yeah."

The two shows will combine in March in a two part special when a cyber-attack leaves Holby City Hospital in chaos, with intertwining stories meaning familiar faces from both shows will interact.

The exciting collaboration will kick off during 'Casualty' on March 2, and will conclude with an episode of 'Holby City' on March 5.

BBC is celebrating the 20th anniversary of 'Holby', with returning characters set to make guest appearances throughout the year.

Storylines set for the crossover special include a possible pregnancy, a car crash and two members of staff facing a fight for their lives with only one operating theatre available.

Simon Harper, the executive producer of both shows, said: "We've known for some time there's been major audience appetite for a mega crossover between these sister shows.

"You'll see both the Casualty and Holby teams striving heroically against the odds in two episodes of pure, nail-biting, taut, emotional medical drama."