Kate McKinnon is an actress you know from her decade-long run on Saturday Night Live. You can catch her in her latest comedy, The Roses, set to release in theaters on September 29th. She's also an author, and her latest book is SECRETS OF THE PURPLE PEARL, the second installment in her bestselling The Millicent Quibb School of Etiquette for Young Ladies of Mad Science series, on sale September 30th.... see more