Kathleen "Kat" Slater (also Moon and Mitchell) is a fictional character from the BBC soap opera EastEnders, played by Jessie Wallace. She was also played by Kate Peck in a flashback in 2001 and Sumar-Elise Sandford in a flashback in 2018. Kat is the second eldest Slater family sister and first appeared on 18 September 2000. Kat's usual dress is very short skirts and leopard-print tops, with much make-up and heavy fake tan. Her initial stint saw her involved in many storylines, most significantly in a plot twist that sees her supposedly sister Zoe Slater (Michelle Ryan), revealed to be her daughter after she was raped by her uncle Harry Slater (Michael Elphick) as a child. Kat and Zoe's relationship is tested several times, and a feud forms when they compete against each other for the affection of Anthony Trueman (Nicholas Bailey). Another key aspect to the character's storylines is her marriage to Alfie Moon (Shane Richie), prior to which she became briefly engaged to Andy Hunter (Michael Higgs); after Kat jilted Andy on their wedding day, he blackmailed her into sleeping with him in his revenge bid against Alfie and Kat. Kat was absent between November 2004 and May 2005 following Wallace's maternity leave, but returned early to tie in with Zoe’s exit storyline. Kat later left the soap on 25 December 2005.
