The following is a list of housemates in the eighteenth series of Big Brother UK.
Andrew Cruickshanks, is a hairdresser from Glasgow. He was one of the four potential people to enter on Day 1 as the "People's Housemate" but was beaten by Tom. He entered the house on Day 25 as one of four "Second Chance" housemates. This meant he was not eligible to win the series, however, the "Second Chance" housemate who placed the highest would take £15,000 from the overall prize fund. On Day 44, Andrew's team won "The Steal", therefore each member were given the opportunity to individual steal the overall stolen money. As Andrew pressed his buzzer first, he earned himself £18,900. However this came at a cost as he was then forced to evict a housemate. He chose to evict Sam, the only other remaining "Second Chance" housemate. This earned him the £15,000 "Second Chance" prize, bringing his total winnings to £33,900. He left the house during the final on Day 54.
Arthur Fulford, aged 24, is from Devon. Before Big Brother, Arthur appeared on The F***ing Fulfords and Life Is Toff alongside his family. He entered the house on Day 1, and was immediately chosen to be exiled by "People's Housemate" Tom. This meant he would face the first eviction. He survived this eviction on Day 5. However, on Day 7, he left the house for unexplained reasons.
Chanelle McCleary, aged 24, is a model and care assistant from Manchester. Before Big Brother, Chanelle appeared on the sixth series of Ex on the Beach. She entered the house on Day 1, and was immediately chosen to be exiled by "People's Housemate" Tom. This meant she would face the first eviction. She survived this eviction on Day 5. On Day 8, she received a formal warning for her behaviour towards Kieran. Chanelle received another formal and final warning on Day 13 following an argument with Kayleigh her behaviour was deemed as threatening. On Day 15, she was nominated to face the third eviction by her fellow housemates. On Day 18, she survived this eviction. Due to unacceptable behaviour from multiple housemates on Day 20, the housemates were told that they would all face the fourth eviction, however Chanelle survived this on Day 25, receiving just 4.71% of the public vote to evict. On Day 37, Chanelle became the first victim of "The Hunt' after being randomly targeted by her fellow housemates. This meant that she faced the sixth eviction. She survived a backdoor eviction in the early hours of Day 40, and was later saved from eviction by her fellow housemates during the eviction show later that day. On Day 45, Chanelle was nominated to face the next eviction. She was evicted with the most votes during a double eviction on Day 47. Chanelle made a brief return to the house on Day 51 during a task which saw Deborah and Kieran participate in a fake wedding.