Alex Walkinshaw is leaving 'Casualty' to join 'Holby City'.
The 39-year-old actor - who has played hunky nurse Adrian 'Fletch' Fletcher in the BBC medical drama since 2012 - will see his alter-ego turn his back on the Emergency Department to pursue a career in the main hospital wards.
Speaking on ITV's 'Lorraine' this morning (01.04.14), he said: "My 'Casualty' days are over."
The father-of-four is set to leave with a bang after he's forced to deal with the consequences of his steamy affair with clinical manager Tess Bateman (Suzanne Packer).
Alex explained: "His relationship with Tess all comes back up and they have to deal with certain things about that. It has to play out and to play out, it means Fletch has to leave 'Casualty'.
"He leaves 'Casualty' during that storyline and then I think, at a later date, potentially gets offered another job within the same hospital."
However, Fletch's new job won't run as smoothly as he hopes when he crosses paths with a former colleague, the Director of Nursing Colette Sheward (Louise Delamere), who will go out of her way to make his life difficult.
Oliver Kent, executive producer of 'Casualty' and 'Holby City', said: "We at 'Holby City' were thinking of a new male nurse to play alongside Jonny Maconie (Michael Thomson) and lock horns with Colette.
"When Alex suggested he might get in the lift and come upstairs to 'Holby City', we accepted like a shot. Alex as Fletch has been a wonderful asset to 'Casualty' and I am very excited about him bringing his unique blend of warmth and blokiness to the wards."

Rochelle Humes believes Emma Willis has become her husband Marvin Humes' new "TV wife".
The Saturday's star insists she likes watching the former JLS singer, whom she married in 2012, presenting with Emma, 38, on 'The Voice' because they work well together.
Asked if she would like a presenting job on 'The Voice', Rochelle replied: "Oh no, no. That's his TV wife now. I like watching them together."
Meanwhile, Rochelle, 25, will soon return to BBC Three's 'Sweat the Small Stuff' alongside Nick Grimshaw, but she's determined to bite her tongue during filming in a bid to avoid future embarrassment for her and Marvin's 10-month-old daughter Alaia-Mai.
She explained to Digital Spy: "There's some things I shouldn't say on TV now I'm a mum. I get so carried away on Friday night [filming] because I don't really have much of a social night anymore, so I need to remember, 'Don't do that - you've got a daughter and she will watch this one day'. And I have to remember that if we have a drink afterwards I will have to get up in the morning."

EastEnders' Lee Carter is to become a suspect in the Lucy Beale murder case.
The hunky newcomer - played by Danny Boy Hatchard - will grace Albert Square next week as the son of Mick and Linda Carter (Danny Dyer and Kellie Bright) after he arrives from his army placement in Afghanistan.
However, little does Lee know that he will attract the attention of the police after he strikes up a relationship with Lucy (Hetti Bywater) just before her death next month.
Speaking to the Radio Times magazine, Danny said: "He's been in Afghanistan surrounded by a load of blokes, comes home and sees a nice bit of skirt.
"He likes Lucy, goes in bold and gets what he wants. They form a nice little bond together and then she goes and gets murdered!
"The likelihood is - and potentially the way they're going to run it - is that Lee is a suspect.
"Whether he's [Lee's] the killer, I don't know. And nobody knows. The way the writers are working is very clever."
Lucy is set to be brutally murdered by a fellow resident after she falls into a trap set by her cold-blooded killer.
However, show bosses are keen for the chilling storyline to be as big as the 'Who Shot Phil Mitchell?' plot in 2001, so they are withholding the killer's identity until next February.

Naomi Watts has regrets about playing Britain's Princess Diana.
The Oscar-nominated actress took on the role of the much loved princess in the recent biopic 'Diana', which told the story of her split from Prince Charles and her consequent relationships, and she's confessed that it may have been a mistake to make the film.
She told Harper's Bazaar magazine: "I got seduced by the fantastic character. Diana did a lot of things that had positive and negative results. She was multifaceted.
"But ultimately there were problems [with the film] and it ended up taking a direction that was not the one I was hoping for."
However, the 45-year-old star claims she doesn't completely regret doing the film as she knew from the beginning that it would be a challenge.
She added: "With risk there is every chance it's going to fail. If you have to go down with that sinking ship, so be it."
'Diana' - which was directed by Oliver Hirschbiegel - experienced an unsuccessful run in the box office when it was released in September last year and was further criticised when an advertising poster for the film was erected near the tunnel in Paris, France where Princess Diana and her boyfriend Dodi Fayed lost their lives in a car crash in 1997.

Darren Aronofsky's divorce stopped him from directing 'The Wolverine'.
The 45-year-old director had been in talks to take the reigns on the sixth installment of the 'X Men' series and despite confessing that he loved the project, he says he couldn't commit to it because he was in the middle of his divorce from 'The Mummy' actress Rachel Weisz.
He told MTV News: "I loved the script and I thought the film came out great. I just had...it was a hard time in my life.
"It was complicated. I couldn't leave New York for that long an amount of time."
The 'Noah' director, who is currently promoting the film's release, also revealed that the opportunity to direct the biblical adventure was more important to him.
He added: "And, to be honest, the possibility of 'Noah' had started to emerge, and here was something I'd been thinking about for years. I was really excited by that."
Despite turning down the role of director on superhero flick 'The Wolverine', Aronofsky - who was reportedly in talks to take the helm of 'Batman vs. Superman' - has admitted that he would definitely have been interested in the job which has been snapped up by Zack Snyder.
He said: "Superman's one of the holy grails. It's Superman. It's the best superhero. Batman is great, of course, but it's Superman. He's the same level. That possibility was great."

Pink's court case against Specialists Entertainment production company has been dismissed.
The singer's record label Sony Music will get to keep the $36,213.31 they were accused of withholding in royalties to two producers, who claimed they were owed the cash for working on two tracks, 'Hiccup' and 'Can't Take Me Home', from the star's 2000 debut album of the same name.
According to RadarOnline.com, a New York appeal court sided with Pink - real name Alecia Moore - and her label on March 4 and have dismissed the case.
The site reports that the legal documents explained that "granted plaintiff's cross motion to amend its complaint to add a lain for breach of contract as a third-party beneficiary as against defendant Sony Music Holdings, Inc., unanimously reversed, on the law, without costs, the cross motion denied, and the complaint dismissed.
"The agreement, requesting and authorizing Sony to deduct a portion of royalties payable to Moore and to pay them directly to plaintiff, by its express terms, negates any intent to permit enforcement by third-parties."
It was ruled the producers cannot claim money from Sony because the agreement was with Pink.

Charlie Sheen has thrown his final wild party before getting married.
The 'Anger Management' star hosted a bash in November last year with a predominantly-female guest list but his now-fiancée Brett Rossi warned it would be the last one he threw.
A guest of the event at Charlie's Mulholland Estate in Beverly Hills said: "It was just a great party. Being a 'Charlie Sheen party, there was - like always - more girls than guys. Everyone was getting along very well, except for one person."
The 48-year-old actor's porn star girlfriend was reportedly furious with the guest list at the shindig and made it clear to her partner that the night was to be his final hurrah before settling down with her for good.
The source added: "She was not impressed. All of the guests had their cell phones confiscated and everyone signed non-disclosure agreements. The party had sky writers, fantastic food and Charlie was clearly having fun.
"Little did he realise it would be the last party he would be hosting like that for a very, very long time!
"As long as Brett is in the picture, there will be no more parties with Charlie's harem of women."
Charlie proposed to his girlfriend - who is half his age at 24 years old - while on a Valentine's Day (14.02.14) trip to Hawaii but the wedding is currently on hold as she is yet to finalise her divorce from her first husband, Jonathan Ross.

Jennifer Love Hewitt's wedding was "really sweet".
The 34-year-old actress tied the knot with her 'Client List' co-star Brian Hallisay just days before their daughter Autumn was born last November, and their intimate ceremony was very special.
She said: "I got married . . . Five days before she was born, basically.
"It was just the two of us and then we went to Bed, Bath and Beyond because that's what married people do.
"It was very, it was really sweet and he's an awesome, incredible father and a great husband and I just feel really lucky."
Though 'The Ghost Whisperer' actress' daughter is just four months old, she is very musical and Jennifer already thinks she will grow up to be a dancer.
Speaking on 'The Ellen DeGeneres Show', she said: "She's fantastic. She's sleeping better now, not so much in the beginning, which was a little rough. But, she's a great sleeper now.
"She watches your show everyday. We both get very excited when the theme song starts and she watches you dance.
"She's big into hip-hop and Latin music for some reason. She does the Dougie...I take her arms and do the Dougie...The second the show comes on and you start dancing she like she does this weird kick thing with her leg and she gets her little chair. She loves it. I think she's gonna be a dancer. I really do. She loves it."

Halle Berry takes her children to work with her.
The 47-year-old actress - who has daughter Nahla, six, with ex-partner Gabriel Aubry and son Maceo, five months, with husband Olivier Martinez - is trying to find "balance" in her professional and personal life, and makes her trailer as "nice" as possible for her kids to join her on set.
She explained: "What I'm learning to do, trying to do right now, is find the balance.
"My baby is always with me on set. I bring my daughter after school. I have a nursery there, a playroom for her, so I try to make it as nice as I can for them to spend time with them, see them."
The 'Frankie and Alice' star has already got back in shape since having her son, and credits breastfeeding and eating sensibly with helping her regain her slim figure.
In an interview with 'Extra', she added: "Every mother should breastfeed. It's the quickest way to shed the initial weight and then you have to eat right."
The actress also said her daughter is thrilled with her new baby brother.
She explained: "It's like one of her doll babies came alive. She gets to take care of him, feed him, change his diapers, play with him, dress him up in different clothes like five times a day because she can, so she loves it."

Lily Aldridge looked every inch the supermodel as she jetted into to LAX airport in Los Angeles. The Victoria's Secret angel teamed a snake print sweater with oversize aviator shades.

Lady Gaga hit the town following her performance at the Roseland Ballroom.The singer wore hot pants and fish net tights for her night out with pals at the Rivington F&B bar in New York.

Rosie Huntington-Whiteley showed off her enviable legs in a grey mini-dress and pink blazer as she arrived at the Vogue festival in London.