EastEnders is a BBC soap opera that first aired on 19 February 1985. The following is a list of characters that first appeared in 2019, in order of first appearance. The characters are initially introduced by the show's executive consultant, John Yorke, or his successors, senior executive producer, Kate Oates, or executive producer, Jon Sen. The first character to be introduced is Bailey Baker (Kara-Leah Fernandes), the daughter of Mitch Baker (Roger Griffiths). She is followed by her mother Dinah Wilson (Anjela Lauren Smith) who is introduced the following month. Sisters Iqra Ahmed (Priya Davdra) and Habiba Ahmed (Rukku Nahar), the granddaughters of Arshad Ahmed (Madhav Sharma) and Mariam Ahmed (Indira Joshi) are also introduced in February. Danny Hardcastle (Paul Usher) and Midge (Tom Colley), associates of Phil Mitchell (Steve McFadden), are introduced next, followed by Chantelle Atkins (Jessica Plummer), the daughter of Karen Taylor (Lorraine Stanley) and Mitch Baker (Roger Griffiths). Chantelle is joined by her husband Gray Atkins (Toby-Alexander Smith) and her children Mia Atkins (Mahalia Malcolm) and Mackenzie Atkins (Isaac Lemonius). Later, Brooke (Ria Lopez) is introduced as a love interest for Bernadette Taylor (Clair Norris). In June, Daniel Cook (Adrian Edmondson) joined, later followed by Jonno Highway (Richard Graham), the father of Stuart (Ricky Champ) and Callum Highway (Tony Clay). In August, the wife of Patrick Trueman (Rudolph Walker), Sheree Trueman (Suzette Llewellyn) was introduced as well as Ash Panesar (Gurlaine Kaur Garcha), the girlfriend of Iqra. In September, Tom Wells joined the cast as Leo King, the son of Tony King (Chris Coghill) and Wanda Baptiste (Anni Domingo) as Sheree's mother. October saw the introductions of the Panesar brothers: Jags (Amar Adatia), Kheerat (Jaz Deol) and Vinny (Shiv Jalota). Additionally, multiple other characters appear throughout the year.

Bailey Baker

Bailey Baker, played by Kara-Leah Fernandes, first appears in episode 5847, which was first broadcast on 10 January 2019.

Bailey is a girl who is in Mitch Baker's (Roger Griffiths) van when drug addict Craig (Andrew Armitage) tries to break in. She hits him over the head and then Mitch arrives, telling Bailey to keep quiet but she says she is bored so he says he will get her a football to play with. Mick Carter (Danny Dyer) sees Bailey sitting with the ball on the street and when she says it is boring on her own, he says he used to spend hours kicking a ball against a wall. Bailey decides to kick the ball against the wall of Mick's pub, The Queen Victoria, but she smashes an upstairs window. Mick, his wife, Linda Carter (Kellie Bright), Mitch, his son Keegan Baker (Zack Morris) and Keegan's mother, Karen Taylor (Lorraine Stanley) all arrive but when Karen tells Bailey to leave, Mitch is forced to say she is with him. Mitch tells Karen that Bailey is his friend's daughter, and takes Bailey to a football training session. However, after Karen looks after Bailey, Bailey asks Mitch why she is not allowed to tell people that he is her father.

When Bailey returns home from a football game, she is shown to be a young carer for her mother, Dinah Wilson (Anjela Lauren Smith), who is suffering from multiple sclerosis. When the Taylor family find out, they pledge to help out, and encourage Bailey to seek help from a care organisation. When Dinah commits suicide, Bailey moves in with Karen and her children. Bailey overhears a conversation between Karen and Mitch, where she discovers that Karen knew Dinah was going to kill herself. She holds a grudge against Karen for a number of weeks, until Karen buys her a star in honour of her mother. When the COVID-19 lockdown occurs, she goes to live with an aunt. When Chantelle dies, Mitch goes to tell her.

Bailey was called a "mystery newcomer" by Sophie Dainty from Digital Spy.

The character made an unannounced departure from the show on 8 December 2023.

Dinah Wilson

Dinah Wilson, played by Anjela Lauren Smith, makes her first appearance in episode 5869, broadcast on 14 February 2019. Dinah is the ex-girlfriend of Mitch Baker (Roger Griffiths) and mother to his daughter Bailey Baker (Kara-Leah Fernandes). It is soon discovered that Dinah has multiple sclerosis and is looked after by Bailey.

Mitch reveals to his ex-girlfriend Karen Taylor (Lorraine Stanley) that Dinah has multiple sclerosis and that Bailey is her carer. Karen, Mitch and their two children Keegan Baker (Zack Morris) and Chantelle Atkins (Jessica Plummer) help Bailey to clean her flat and Dinah becomes friends with Karen. Unbeknownst to Bailey, Dinah's condition is getting worse and she tells Keegan. Dinah's health decline becomes apparent when she has an accident and is rushed to hospital. The Taylors later rent a room for Dinah and Bailey at 23A Albert Square so that Dinah can have more assistance. Dinah and Karen become closer and Dinah confides in Karen that she can no longer deal with her multiple sclerosis and wants Karen to help her end her life. Karen refuses and reaches out to Darren (Kris Saunders), a man with multiple sclerosis so that he can speak to Dinah. Darren tells Karen that he used to be depressed but now he enjoys his life and agrees to speak to Dinah the following week. However, Dinah refuses and tells Karen that she doesn't want her condition to ruin her life and that she wants to be there for Bailey.

Unknown to Karen, Dinah plans on ending her own life and buys birthday cards where she writes her final messages to Bailey. Karen discovers this, but Dinah breaks down and reveals that she is scared she will not be able to survive any longer and Karen encourages her to not let her condition negatively impact her life any more. Dinah spends time with Bailey and the following day, Dinah seems better and thanks Karen for her help. Karen decides to take Bailey on a family trip to Walford Park, but Dinah decides to stay at home and says her last goodbye to Bailey. After she finishes writing her last birthday cards to Bailey, Dinah commits suicide and her body is discovered by Mitch.

Habiba Ahmed

Habiba Ahmed, played by Rukku Nahar, makes her first appearance in episode 5871, originally broadcast on 19 February 2019. She is introduced alongside her sister, Iqra Ahmed (Priya Davdra), as the granddaughters of Arshad Ahmed (Madhav Sharma) and Mariam Ahmed (Indira Joshi). Habiba is described as "full of heart" and "bubbly", and she has "the best intentions" but it was said that "trouble never seems to be too far behind". Nahar said of her casting, "I'm so excited to have joined EastEnders, it's a show I've grown up watching and stepping onto Albert Square is just unreal! Habiba is great fun to play and I'm so happy to be working alongside Priya. Can't wait for you all to see what we get up to on the Square." Davdra confirmed on social media that the characters would appear from February 2019.

Iqra Ahmed

Iqra Ahmed, played by Priya Davdra, makes her first appearance in episode 5871, originally broadcast on 19 February 2019. She is introduced alongside her sister, Habiba Ahmed (Rukku Nahar), as the granddaughters of Arshad Ahmed (Madhav Sharma) and Mariam Ahmed (Indira Joshi). Ash Kaur (Gurlaine Kaur Garcha) is introduced as Iqra's girlfriend. Iqra is the first Muslim lesbian to be featured on EastEnders.

Danny Hardcastle

Danny Hardcastle, played by Paul Usher, made his first appearance in episode 5890, originally broadcast on 25 March 2019. Danny is introduced as a business associate of Phil Mitchell (Steve McFadden), as well as being involved with Keanu Taylor (Danny Walters). It was announced on 6 March 2019 that the character would appear for a "short period over the spring". Danny was introduced on 25 March 2019, departed on 25 April 2019 and returned on 16 March 2020 and departed again on 29 September 2020.

Danny is an acquaintance of Phil Mitchell (Steve McFadden) who has a connection to garages used for money laundering in Spain, which leads Phil into liquidation. He arrives in Walford to tell Phil that he needs to come up with an alternative way to launder money, after the business of the garages collapsed. Phil's son Ben Mitchell (Max Bowden) decides to meet up with Danny and threaten him into going into business with him. As revenge, Danny sends Midge (Tom Colley) to befriend Phil's daughter Louise Mitchell (Tilly Keeper) and kidnap her. Louise gets trapped in a container and is due to be taken into sex trade in Odesa, but the Mitchell's manage to rescue her. Phil confronts Danny and Danny reveals that it was a warning to Ben who threatened him and Danny insults him, causing Ben to almost attack him with a glassed cup. Danny later gives Phil another job offer, but Phil refuses and warns Danny never to contact him again.

Midge

Midge, played by Tom Colley, makes his first appearance in episode 5891, broadcast on 26 March 2019. The character and Colley's casting were announced on 19 March 2019. Midge is described as "thug", "dodgy" and "nasty". Midge bumps into Louise Mitchell (Tilly Keeper), causing her to spill coffee on herself. He offers to make it up to her but she declines. He later sees Keanu Taylor (Danny Walters) and when he sees Louise again, she sits with him and introduces Keanu to Midge, who says his name is short for Miguel as his mother is Spanish. Midge then meets with Louise's father, Phil Mitchell (Steve McFadden), who tells Midge not to mess around. It is revealed that Midge is a rival business owner of Phil's in Spain, that Phil stole business from when he set up garages in Spain and had Keanu working for him. Midge tells Phil he needs compensation and threatens Louise. Phil goes to hit Midge but Keanu stops him. Keanu then tells Phil that Midge was one of the people who tried to kill him in Spain.

Some time later, Midge sees Louise in the pub and says it is nice to see her again. He then calls someone to say he has made contact with "the target" and in 24 hours "she will be history". The next day, Midge realises that Keanu is protecting Louise but after Louise and Keanu argue, he sits with Louise and when Keanu tried to find Louise, he sees Midge and some other men forcing her into a car and driving away at speed. Keanu informs Phil of what he has seen and Phil realises that Louise is being taken to a shipping container yard. Midge has his associates tie Louise's legs up and gag her and he threatens to throw acid in her face if she does not do as she is told, telling her that the shipping container is destined for Odesa, Ukraine. However, when Louise is tied up, Midge reveals it was water, not acid. Midge then locks her in the container. When Keanu finds Louise, Midge knocks him out and locks them both in the container. When Phil arrives, he attacks Midge and demands to know where Louise is. Midge almost overpowers Phil but Phil overpowers Midge and finds out where Louise is.

Chantelle Atkins

Chantelle Atkins (also Baker), played by Jessica Plummer, is the daughter of Karen Taylor (Lorraine Stanley) and Mitch Baker (Roger Griffiths). Chantelle first appears in Episode 5891, originally broadcast on 26 March 2019. It was announced on 20 December 2018 that the character would be joining the series in 2019. Casting for the character was still taking place at the time. On 5 March 2019, it was announced that Plummer would be playing Chantelle. Further details about the character and her family, consisting of husband Gray Atkins (Toby-Alexander Smith) and their children Mia Atkins (Mahalia Malcolm) and Mackenzie Atkins (Isaac Lemonius), were announced on 11 March 2019.