Big Brother 2024, also known as Big Brother 21, is the twenty-first series of Big Brother. It was the second series of Big Brother to air on ITV2 after ITV plc gained the rights to the format, and the third series to air on the network overall. The series began on 6 October 2024 and was again co-presented by AJ Odudu and Will Best, who also returned to host the companion show, Big Brother: Late & Live.
The series concluded on 15 November 2024, when Ali Bromley was announced as the winner with Marcello Dentamaro finishing as the runner-up. At age 38, Ali became the oldest woman of the British franchise to win Big Brother. At 41 days, this was the shortest-running civilian series of Big Brother in the UK, surpassing the previous series which ran for 42 days.
Format The series is set retained the same format from the previous series, running for 36 episodes and airing six nights a week from Sunday to Friday. Unlike the previous civilian series, the launch show was live, and as a result the series ran for 41 days, the shortest series in the show's history. ITV confirmed that the series would again feature a "new cast of carefully selected housemates, from all walks of life" [...] with "cameras capturing [the housemates'] every move, and the nation following every twist and turn." Shopping tasks, nominations and live evictions will return, with the public once again voting throughout the series and ultimately determining the winner, who will walk away with a cash prize. Hosts Odudu and Best also teased that the tasks for this series would be "taken up a notch".
Housemates On 6 October 2024, the day of launch show, the Big Brother social media accounts posted close-up teasers of the sixteen housemates' eyes several hours prior to the launch. Name Age on entry Hometown Day entered Day exited Result Alison "Ali" Bromley 38 Leicester 1 41 Marcello Dentamaro 34 East London 1 41 nowrap Emma Morgan 53 Altrincham 1 41 Hanah Haji 24 Acton 1 41 Nathan King 24 Sanquhar 1 41 Segun Shodipo 25 Watford 1 41 Thomas Atkinson 20 Carlisle 1 37 Sarah Griffiths 27 Bayston Hill 1 37 Rose "Rosie" / "Baked Potato" Weber 29 Calstock 1 36 Khaled Khaled 23 Manchester (originally from Lebanon) 1 34 Lily Benson 20 Warrington 1 34 Dean Quinton 35 Walthamstow 1 27 Martha Jones 26 Scarborough 1 24 Izaaz Miah 29 Swansea 1 20 Adaeze "Daze" Aghaji 24 Limehouse Basin 1 13 Ryan Bradshaw 28 Blackpool 1 6
Head of House Starting in Week 2, the Head of House was introduced. Each week, the housemates competed in the Head of House competition. The winner of the competition would be the Head of House for the week. The Head of House would be immune from eviction, be able to influence nominations, and sleep in a special bed. Each week after the nominations, the Head of House would have the opportunity to use either a Killer Nomination Power, or a Save and Replace Power. The Killer Nomination Power would automatically put one housemate up for eviction. While the Save and Replace Power would save one nominated housemate, and replace them with another housemate. The housemates could only win Head of House once during the series. Week Head of House Head of House Power Week 2 Khaled Killer Nominate Martha Week 3 Ali and Dean Save Hanah and Lily, replace them with Khaled and Marcello Week 4 Emma Nominate Ali, Khaled, Martha and Thomas for an instant eviction Save Nathan, replace him with Dean Week 5 Marcello Save Thomas, replace him with Baked Potato
Nominations table Week 1Week 2Week 3Week 4Week 5Week 6FinalNominationsreceived Day 23 Day 26 Ali Housemate Sarah,Segun ,Khaled & Marcello Noteligible Marcello,Hanah Sarah,Emma Winner(Day 41) 10 Marcello Housemate Ali,Daze Izaaz & Nathan Noteligible Noteligible Ali,Lily, Runner-up(Day 41) 3 Emma Housemate Izaaz,Lily Hanah & LilyMartha,Thomas,Khaled,AliDean,Hanah,Dean Lily,Ali Third place(Day 41) 4 Hanah Housemate Ali,Lily Izaaz & Nathan Noteligible Noteligible Emma,Ali Fourth place(Day 41) 5 Nathan Non-Housemate Sarah,Izaaz Hanah & Lily Noteligible Noteligible Banned Fifth place(Day 41) 8 Segun Housemate Daze,Lily Izaaz & Nathan Noteligible Nathan,Lily Lily,Ali Sixth place(Day 41) 3 Thomas Housemate Daze,Lily Hanah & Lily Noteligible Lily, Emma,Lily Evicted(Day 37) 4 Sarah Housemate Ali,Nathan Hanah & Lily Noteligible Noteligible Lily,Khaled Evicted(Day 37) 5 Rosie Non-Housemate Thomas,Ali Hanah & Lily Noteligible Noteligible Khaled,Thomas Evicted(Day 36) 1 Khaled HousemateLily,Ali,Martha Izaaz & Nathan Noteligible Lily,Nathan Lily,Nathan Evicted(Day 34) 5 Lily Housemate Emma,Segun Izaaz & Nathan Noteligible Noteligible Thomas,Khaled Evicted(Day 34) 18 Dean Non-Housemate Sarah,Daze Khaled & Marcello, Noteligible Marcello,Sarah Evicted(Day 27) 2 Martha Housemate Segun,Nathan Izaaz & Nathan Noteligible Evicted(Day 24) 2 Izaaz Housemate Lily,Daze Hanah & Lily Evicted(Day 20) 6 Daze Housemate Izaaz,Dean Evicted(Day 13) 5 Ryan Non-Housemate Evicted(Day 6) N/A Notes 1 none 2 3 4 5 6, 7 Againstpublic vote Dean,Nathan,Ryan Ali,Daze,Lily,Martha Hanah,Izaaz,Khaled,Lily,Marcello,Nathan Ali,Khaled,Martha,Thomas Dean,Hanah,Lily,Marcello,Nathan Ali,Emma,Khaled,Lily,Thomas Ali,Emma,Hanah,Marcello,Nathan,Sarah,Segun,ThomasEvicted RyanMost votesto evict DazeMost votesto evict IzaazMost votesto evict MarthaMost votesto evict DeanMost votesto evict LilyMost votesto evict 0.33%(out of 3) Nathan3.67%(out of 6) Sarah0.45%(out of 8) Hanah8.3%(out of 4) Thomas0.59%(out of 8) Emma12.12%(out of 3) KhaledSecond most votesto evict Segun2.41%(out of 6) Marcello20.28%(out of 2) Ali51.85%to win
Notes
: On Day 1, the housemates had to choose whether to stand on the red side or the blue side, and that whichever side they chose would have consequences. After all housemates had entered, they were told that the one side would be housemates, whilst the other side would be "non-housemates" and would ultimately be sent into storage. The blue side were revealed as housemates, whilst the red side were non-housemate. Once in storage, both sides of the house were informed that they would compete in battles with members of the opposing side in order to switch places and gain housemate status, with those left in storage facing the public vote. On Day 2, Martha won the first battle against Ryan, ultimately gaining housemate status and chose Hanah and Rosie to move into the main house with her. Ryan was sent to storage. Segun won the second battle against Daze, and remained a housemate. Thomas won the third battle against Rosie, with the former gaining housemate status and chose Marcello and Sarah to move with him, whilst the latter moved back to storage. Daze won the final battle of endurance to secure housemate status, and chose Emma and Lily to join the house with her, leaving Baked Potato, Dean, Nathan and Ryan to face the first public vote. : For this week, there were two "Heads of House". Additionally, the housemates nominated in pairs, which had been chosen by "Heads of House" Ali and Dean. The pairs were Hanah and Lily, Marcello and Khaled, Izaaz and Nathan, Martha and Segun, Sarah and Baked Potato, and Emma and Thomas. : On Day 23, as "Head of House", Emma was given sole responsibility of deciding which housemates would face an instant eviction. She chose Martha, Thomas, Khaled and Ali. : For this week's shopping task, housemates were divided into two teams, the "Vampires" and the "Villagers". The winning team received a luxury shopping budget and the ability to nominate, whereas the losing team received basic rations and were unable to nominate. : On Day 28, as punishment for discussing nominations, Nathan was ineligible to become "Head of House" and was banned from nominating this week. : On Day 34, the voting lines opened for the public to vote for the winner. On Day 36, voting was frozen and later that day, the housemate who selected the gold envelope; Segun, subsequently had to choose three housemates to enter "The Vault" alongside him; Ali, Baked Potato and Nathan. Of the three housemates chosen, Baked Potato, who received the fewest votes to win, was evicted via the back door. On Day 37, the vote to win re-opened and the two housemates with the fewest votes, Sarah and Thomas; entered "The Vault" and were evicted via the back door. : The voting percentages reflect the overall share of the vote when the lines closed for good, and do not account for intermittent voting freezes throughout the final week. Ali won with 71.88% of the votes between her and Marcello.
Weekly summary The main events in the Big Brother 21 house are summarised in the table below.