Suzanne Marie Somers (née Mahoney; born October 16, 1946) is an American actress, author, singer, businesswoman, and health spokesperson. She appeared in the television role of Chrissy Snow on Three's Company and as Carol Foster Lambert on Step by Step. Somers later became the author of a series of self-help books, including Ageless: The Naked Truth About Bioidentical Hormones (2006), about bioidentical hormone replacement therapy. She has released two autobiographies, four diet books, and a book of poetry.