Nora Roberts is a bestselling author of more than 209 romance novels. She was the first author to be inducted into the Romance Writers of America Hall of Fame. As of 2011, her novels had spent a combined 861 weeks on the "New York Times" Bestseller List, including 176 weeks in the number-one spot. Over 280 million copies of her books are in print, including 12 million copies sold in 2005 alone.

Katherine Kellgren has recorded over 200 audiobooks and won four Audie Awards, three ALA Odyssey Honors, and eight "AudioFile" Earphones Awards. In 2011, Kellgren was named the Best Voice in Young Adult & Fantasy, and she won the Audie award for Best Female Narrator in both 2013 and 2014. Kellgren has also appeared onstage in London, New York and Frankfurt. She has recorded numerous plays and dramatizations of novels for the radio, including winners of the Peabody Award. She is a graduate of The London Academy of Music and Dramatic Art. In naming Kellgren a Golden Voice, "AudioFile" magazine noted that she is a "marvel with accents...she is definitely a narrator to keep an ear out for." She lives in New York City.