Jean Slater is a fictional character from the British soap opera EastEnders. She is portrayed by actress Gillian Wright and first appeared in the show in 2004. Jean is known for her vibrant personality and her struggles with mental health, particularly bipolar disorder. Throughout her time in EastEnders, Jean has been involved in various storylines, often focusing on her relationships with her family, especially her son Sean Slater. Her character has garnered attention for addressing important social issues, making her a memorable part of the show's ensemble.