Danielle Jones is a fictional character from the BBC soap opera EastEnders, played by Lauren Crace. The character appeared between 18 August 2008 and 3 April 2009. Crace's casting in the role was announced in July 2008, when she was described as a love interest for fellow new character Callum Monks (Elliott Jordan). In October 2008, it was revealed that Danielle was actually the long-lost daughter of established character Ronnie Mitchell (Samantha Janus). Crace has disclosed that even she was unaware of this fact upon being cast in the role, but always knew Danielle would only have a short arc. Danielle's feelings were further explored in a segment of the BBC EastEnders homepage entitled Danielle's Diary, documenting the character's thoughts on the storylines she was involved in, while a special episode of EastEnders Revealed entitled "The Secret Mitchell" further explored the character's impact on the show.

Danielle played a small but pivotal role in multiple storylines on the show, which focused on her friendship with local resident Stacey Slater (Lacey Turner), her crush on Callum Monks (Elliott Jordan), her adoption secret and seeking to find answers about her missing mother in Albert Square. She was deemed a welcome addition to the soap by members of Telford and Wrekin Council for raising awareness of the town (Telford) the character originates from; however, she was poorly received by The Guardian Gareth McLean and Grace Dent, and dubbed "Drippy Danielle" by the Daily Mirror Jane Simon. Her final episode was watched by 11.46 million viewers, and caused a notable power surge on the National Grid.

Creation and characterisation Danielle was created as the long-lost daughter of established character Ronnie Mitchell (Samantha Janus), and a member of the soap's long-running Mitchell family. Her introduction had been planned from 2007, when story producer Dominic Treadwell-Collins conceived the idea of two new Mitchell sisters, Ronnie and Roxy. Ronnie was depicted as the more detached and icy sister, and a hidden secret was first alluded to eight months after their introduction, when Roxy made a veiled reference to Ronnie's child and a physical fight ensued. Several months later, off-set episodes shot in Weymouth and dubbed "Mitchell Week" by the BBC were aired, during which the audience were introduced to Ronnie and Roxy's father Archie, and learned that Ronnie had given a child up for adoption.

Treadwell-Collins explained that it was necessary to introduce Danielle shortly after this revelation, but in such a manner that she would arrive "under the audience's radar", to preserve the later revelation of her identity as Ronnie's daughter. Lauren Crace, then a third year student at the Royal Academy of Dramatic Art, was cast as Danielle and began filming in June 2008. EastEnders was Crace's first professional acting role, and executive producer Diederick Santer expressed his pleasure that Crace had chosen to make her debut on the show. Upon her introduction, EastEnders producers attempted to deceive the audience into believing Danielle was nothing more than a new friend for Stacey. Crace herself was only told of Danielle's true identity after her successful audition, though as she only signed a six-month contract with the show, was always aware Danielle would only have a short arc. She stated that some audience members guessed Danielle to be Ronnie's daughter almost as soon as she arrived, and that she found maintaining the secret difficult.

Crace initially portrayed Danielle as being shy and afraid of rejection, though felt that Stacey's friendship and living with the Slater family could have a positive impact on her confidence. Discussing her failure at romantic relationships, Crace assessed that Danielle's eagerness may scare men off. She came to find portraying Danielle depressing, explaining that she was bored by and had doubts about Danielle's constant naivety and passive personality. She suggested to the producers that Danielle should stand up for herself more, which was accepted and adapted into her personality, to the point that by the end of her tenure on the show, Danielle was "not a little mouse any more". Crace's view is that Danielle's Mitchell heritage manifested itself in an inner-strength and ability to "come back fighting", giving her a toughness beneath her "wet and pathetic" personality.

Development Series writer Simon Ashdown explained that Danielle initially chose to conceal her identity from Ronnie due to her fear of being rejected. He described her as "hurt and broken by her life", and hoping to charm Ronnie into liking her before revealing the truth. Crace observed that Danielle was intrigued by Ronnie and the Mitchells, but also worried that she was too different from them and may be a disappointment to Ronnie. Danielle's pregnancy was used as a plot-device to bring the two closer together. Crace deemed the development "a huge thing" for Danielle, as contrary to her constant rejection, the one person she most desired support from was finally showing her affection. However, Ronnie's failure to attend Danielle's second clinic appointment signified "a step back" for the character, leaving her "hurt and distraught" and less willing to confide the truth in Ronnie than ever.

In the aftermath of her abortion, Danielle was depicted as being increasingly emotionally unstable and angry with Ronnie, believing that she deserved to belong to the Mitchell family. The writers had Archie discover her secret as a test of his character, experimenting with whether he would be despicable enough to conceal the truth. Lamb deemed Danielle "a huge threat" to Archie's position as patriarch of the Mitchell family, explaining why he chose to lie that Ronnie was suffering from depression and Danielle ought not tell her. Danielle accepted the lie, believing it to explain Ronnie's "hot and cold" reaction to her, and attempted to care for Ronnie and help her recover. Crace explained that despite their turbulent relationship, Ronnie was all Danielle had ever wanted. Despite seeing Archie as "a domineering figure", Danielle initially trusted him and believed he would reunite her with her mother when the time was right. However, as time passed she became aware of Archie's "true colours" and grew afraid of him.

The ultimate revelation of Danielle's identity was set at Archie's wedding to Peggy (Barbara Windsor), matriarch of the Mitchell family. Crace deemed the wedding "the perfect opportunity" for the storyline to conclude, and Santer explained: "Weddings are great because they bring the community together. A wedding gives you a stage, it gives you an event, the context to play things out, so it felt right that these big Mitchell stories would collide at Peggy's wedding." Writer James Payne concurred that setting the reveal at the wedding helped to make the moment "as dramatic and sensational" as it could possibly be. The episode saw Danielle announce that she was Ronnie's daughter in front of the entire wedding reception party, in what Crace has named her favourite scene on the show. She opined that the disbelief Danielle was faced with was "heartbreaking" and served to highlight the fact that "she came as the outsider and she still is the outsider because no one steps in to help her".

Danielle was killed off minutes after revealing her true identity to Ronnie, dying in her mother's arms. Although different outcomes to the storyline were considered, Santer explained that Danielle dying best preserved Ronnie's status as EastEnders "tragic heroine character". Treadwell-Collins felt that to allow Ronnie to have her daughter, the "one thing that is key to her character" would serve to progressively weaken her character, and Santer agreed that while it may initially be touching, ultimately, the relationship would become boring. The scene in which Danielle dies was filmed during winter, but as it was set in early April, snow had to be cleared away from the set before filming could commence. A body double was used for the moment Danielle was run over. Although sad to leave, Crace felt that the story's conclusion was the right one, and was glad that Ronnie and Danielle finally shared a brief moment in the end, explaining: "It was so important that that tender moment was finally found, because that's all people wanted. It's all Danielle wanted, and it's all Ronnie wants." Crace concluded: "I think Danielle will leave quite a big mark on the Square and on the people in the Square – probably a bigger mark than she did when she was alive.

News of Danielle's death was subject to a media embargo, although several newspapers and magazines including the Radio Times leaked news of Crace's exit in advance of the event. Digital Spy's Kris Green reported that most of the online EastEnders community had anticipated the character's exit from the soap beforehand, some as early as January 2009.

Storylines Danielle arrives in Walford, having left her hometown of Telford and is befriended by local resident Stacey Slater (Lacey Turner), who gives her a job on her market clothing stall and offers her the spare room in her family's home. Danielle quickly develops a crush on fellow stall-trader Callum Monks (Elliott Jordan), who leads her on in an attempt to make Stacey jealous, but he helps her get a second job, cleaning at The Queen Victoria public house, where she gets caught in the feud between the pub's landlord Archie Mitchell (Larry Lamb) and his daughter Ronnie (Samantha Janus). Both try to use Danielle to get information from the other, with Archie persuading Danielle to steal Ronnie's post. Ronnie is furious when she realises, and sacks Danielle after publicly berating her. Danielle is devastated by this, and is later seen clutching a locket containing a photograph of Ronnie, revealing herself to be Ronnie's long-lost daughter, Amy.

It soon transpires that Danielle is the result of a teenage romance between Ronnie and her first boyfriend, Joel Reynolds. Archie disapproved of the pregnancy and put Danielle – named Amy by Ronnie — up for adoption. Danielle was adopted by Lizzie and Andy Jones (Aneirin Hughes). She began trying to locate her birth mother after Lizzie's death in 2007. Following Ronnie's tirade, Danielle tries to leave Albert Square, but Stacey and her family persuade her to stay with them.

In late 2008, Ronnie's sister Roxy (Rita Simons) gives birth to a baby girl who she names Amy, in honour of the child Ronnie thought she had lost, to Danielle's surprise. When Danielle falls out with Stacey and ends up squatting in a flat owned by next-door neighbour Ian Beale (Adam Woodyatt), Ronnie convinces him not to call the police.