Tyrone Benskin as Warren Bellamy, the architect of the Capitol.Sammi Rotibi as Agent Adamu, a Nigerian-born CIA operative.Keenan Jolliff as Zachary Solomon, Peter's son.Laura De Carteret as Isabel Solomon, Peter's wife.Raoul Bhaneja as Nicholas Bastin, the 'Janitor'.Sumalee Montano as Inoue Sato, director of the CIA's office of security.Rick Gonzalez as Alfonso Nuñez, a Capitol police officer.Beau Knapp as Mal'akh, a mysterious figure who sets Robert on a quest.Valorie Curry as Katherine Solomon, Peter's daughter.Eddie Izzard as Peter Solomon, Robert's academic mentor.Ashley Zukerman as Robert Langdon, a Harvard professor of Symbology.Years before the events of The Da Vinci Code, a young Robert Langdon is hired by the CIA to solve a number of deadly puzzles when his mentor goes missing. In January 2022, the series was cancelled after one season.

The series consists of ten episodes, premiered on Septemon Peacock. Dan Trachtenberg directed the series pilot and serves as executive producer on the series alongside Ron Howard, Brian Grazer and Brown himself. It also stars Eddie Izzard, Beau Knapp, Rick Gonzalez, Valorie Curry and Sumalee Montano in main roles. The series is a prequel to the Robert Langdon film series and features Ashley Zukerman as fictional Harvard symbologist Robert Langdon. Dan Brown's The Lost Symbol, or simply The Lost Symbol, is an American action- adventure mystery- thriller television series based on Dan Brown's 2009 novel The Lost Symbol.

The lost symbol synopsis