Kate Pearson is a fictional character from the television series This Is Us. She is portrayed by actress Chrissy Metz and is one of the three siblings in the Pearson family. Kate struggles with her weight and self-acceptance throughout the series, which is a central theme in her character development. In addition to her personal challenges, Kate is passionate about music and aspires to be a singer. Her relationships with her family, especially her father Jack Pearson and brother Kevin Pearson, play a significant role in her story. The series explores her journey of growth, love, and resilience.