The curator of the Guggenheim Museum in Bilbao and fiancée to Prince Julián of Spain. She partners with Robert Langdon to untangle a mystery that affects her future and reputation.

An artificial intelligence created by Edmond Kirsch with extensive capabilities and a British accent. Winston plays a vital role in advancing Kirsch's final presentation to a worldwide audience.

An influential futurist and atheist whose groundbreaking scientific presentation sets off the story's central conflict. He is dedicated to advancing science over religion and creates Winston to amplify his message.

A prominent religious figure in Spain, serving as both the head of the Parliament of World Religions and a trusted advisor to the royal family. His conservative views often clash with the scientific progress advocated by Kirsch.

A Jewish scholar and philosopher involved in the Parliament of World Religions, known for his openness to dialogue between science and religion. He is portrayed as a voice of reason and balance.

An Islamic scholar and respected professor from Dubai, known for his wisdom and charisma. He is part of the religious council Kirsch approaches before his presentation.

A Spanish naval officer facing personal tragedy and retirement, who becomes involved in the unfolding events after being influenced by outside forces. He is grappling with his faith and personal loss.

In charge of the royal guard in Spain, known for his loyalty and desire for modernization within the palace. He becomes wrongly accused but remains committed to his duty and values.

The head of public relations for the Spanish palace, recognized for her effectiveness and pragmatic approach. She manages media narratives amidst the story's events and palace politics.