HarperCollins Publishers Creators & Guests

Sarah B. Hart is a British mathematician specialising in group theory. She is a professor of mathematics at Birkbeck, University of London and the Head of Mathematics and Statistics at Birkbeck.

Rachel Annabelle Riley is a British television presenter. She co-presents the Channel 4 daytime puzzle show Countdown and its comedy spin-off 8 Out of 10 Cats Does Countdown. She is a mathematics graduate.

Author of A Human History of EmotionHonorary Research Fellow @emotionshistoryLit./Media Agent: @itshallBDunn International Agent: @jaysambart

Charles Armstrong is an actor and voice over artist.

Lucy Scott is an actor and voice artist. She is best known for her role as Charlotte Lucas in the 1995 BBC production "Pride and Prejudice."Scott started her acting career on the stage. In 1993, she made her on-screen debut in the TV movie "Micky Love."

Susan Allott is a mystery fiction writer.Allott's first novel, "The Silence," was published in 2020. Her second book, "The House on Rye Lane," was published in 2024.Allott received her B.A. in English from Leeds University and her M.A. in Media & Communication Studies from Goldsmiths College.

George Guidall is a prolific audiobook narrator and theatre actor. As of November 2014, he had recorded over 1,270 audiobooks, which was believed to be the record at the time.

Robin Miles is an actor, casting director, audiobook narrator, and audiobook director. She has narrated over 300 books. She also has a voice training school, VOXpertise, for aspiring narrators.Miles has appeared in Broadway shows and on TV shows, including "Law & Order" and "Murder by Numbers." She is best known for her audiobook narrations and narration director work.Miles received her B.A. in Theater and her M.F.A. in Drama from the Yale University School of Drama.

Clare Corbett is an actor, narrator, and voiceover artist.Corbett has appeared in television programmes such as "Casualty," "Eastenders," and "Doctors," over 250 radio plays, and video games such as the Dark Souls series. She has narrated audiobooks, including "The Girl on the Train," which won the 2016 Audie Award for Audiobook of the Year. Corbett studied at the Welsh College of Music and Drama.

Ronald Butler Jr. is a television actor, director, and narrator. He has narrated dozens of audiobooks.Butler is best known for portraying Oscar, the clever receptionist, on the Nickelodeon television series "True Jackson, VP," from 2008 to 2011. He often portrays former President Barack Obama in comedy sketches. He has performed with the Atlantic Theater Company for over 20 years.