Zoe Slater is a fictional character from the BBC soap opera EastEnders, played by Michelle Ryan. She made her first appearance on 18 September 2000. Zoe arrives in Walford along with her father, Charlie (Derek Martin), sisters Kat (Jessie Wallace), Lynne (Elaine Lordan) and Little Mo (Kacey Ainsworth), and grandmother Big Mo (Laila Morse).