Mayim Bialik is an American actress, neuroscientist, and author, best known for her role as Amy Farrah Fowler on the popular television show The Big Bang Theory. She began her acting career as a child star in the 1990s on the series Blossom and later transitioned to more adult roles. In addition to her acting, Bialik holds a Ph.D. in neuroscience from UCLA and has written several books on parenting and mental health. She is also known for her advocacy on various social issues, including mental health awareness and women's rights.