Kat rebuilds her relationship with Zoe, and they part on good terms when Zoe leaves to work as a holiday rep in Ibiza. Though he opts to reconcile with Kat, she is unwilling once she learns of his relationship with her sister. Kat is determined to win Alfie back, but he is now in a relationship with Little Mo. Upon her release, Mo convinces her to return to Walford. Several months later, Kat's grandmother Mo discovers that she is in prison for prostitution. After a one-night stand with a stranger, Roger, a disgusted Kat leaves Walford. Alfie becomes cold and distant and Kat resorts to alcoholism. A reluctant Kat does so, but unbeknownst to her Andy films the liaison and sends it to Alfie. Alfie later borrows money from Andy which he is unable to repay, so Andy threatens to kill him unless Kat has sex with him. Kat leaves Andy, and she and Alfie marry on Christmas Day. However, Kat confesses to Alfie's grandmother Nana Moon, that she loves Alfie - who upon discovering this intervenes he stops Kat and Andy's wedding and confesses his love for her. Kat soon begins a relationship with local crime kingpin Andy Hunter, and they end up getting engaged. Alfie comforts her and realises that he is in love with her. Her boss Alfie Moon persuades her not to, but she suffers a miscarriage shortly after telling Anthony of the pregnancy. Kat discovers she is pregnant by him and decides to have an abortion. Zoe disowns Kat for disapproving of their relationship, and later runs away when Anthony reveals that he is still in love with Kat.Īnthony and Kat's relationship resumes, but she fails to impress his colleagues and breaks up with him as he is about to propose. Their relationship improves, but after Kat breaks up with Anthony, he and Zoe begin an affair. She recovers, is romanced by local doctor Anthony Trueman, and later finds Zoe and brings her home. Zoe flees Walford, and Kat attempts suicide by cutting her wrists. She reveals that she is Zoe's mother, having been sexually abused by Harry aged thirteen. When Zoe announces her decision to move to Spain with their uncle Harry Slater, Kat refuses to allow her to go. Much to Zoe's frustration, Kat is often over-protective of her. Fiercely defensive of her sisters, Kat embarks on a feud with Little Mo's abusive husband Trevor Morgan - though has a fling with Lynne's boyfriend Garry. She finds work in The Queen Victoria public house as a barmaid, where she is an instant hit with the customers due to her feisty and flirtatious nature. Kat embarks on a brief fling with Steve Owen, much to the annoyance of his girlfriend Melanie Beale. Viv later decided to raise Zoe with Charlie as their own daughter, with Kat taking up the role of Zoe’s older sister.ģ0 year old Kat Slater arrives in Walford on 18 September 2000, along with her family: father Charlie Slater, sisters Lynne, Little Mo, and Zoe Slater, with grandmother Mo Harris and brother-in-law Garry Hobbs. Viv kept Zoe, as she was born first and thought it was the right thing to do. With the help of Kat’s grandmother, Mo Harris, Viv named the baby ‘ Luke Slater’ and put him up for adoption, in fear that he’d turn out like his father in the future. Kat was in and out of consciousness, therefore lied to and told it was just the afterbirth. But minutes later, another baby was born, a boy, unexpectedly. In February 1984, Kat gave birth to a daughter, Zoe Slater. Viv keeps this from Charlie and sent Belinda and Little Mo away to their aunt, Violet Slater, in order to hide Kat’s pregnancy. She tells her mother that she was raped by Harry, but Viv pretends not to believe her, secretly ordering Harry to leave, causing him to flee to Spain. This lead to Kat becoming pregnant with his child and in an attempt to run away, Viv catches her and Kat reveals everything. In 1983, when Kat was just 13 years old, her uncle Harry Slater began sexually abusing her. This lead to her other daughters, including Kat, completing for Charlie’s attention, making Viv feel second best.
Viv began to favour her eldest daughter, Lynne.
After the death of her stepfather, Jimmy Harris, she had no fatherly guidance and resented the fact she has no sons. As the girls grew up, Viv became a bitter and cold women. She had an older sister, Lynne Slater, born in 1968, followed by two younger sisters, Belinda Slater, born in 1975 and Little Mo Slater, born in 1977. Kathleen Slater was born on the 14th January 1970, the second eldest daughter of Charlie and Viv Slater.