Robert Langdon Robert Langdon Professor Robert Langdon is a fictional character created by author Dan Brown for his "Robert Langdon" book series: "Angels & Demons" (2000), "The Da Vinci Code" (2003), "The Lost Symbol" (2009), "Inferno" (2013) and "Origin" (2017). He is a Harvard University professor of history of art and "symbology" (a fictional field related to the study of historic symbols, which is not methodologically connected to the actual discipline of semiotics). Tom Hanks portrays Langdon in the "Robert Langdon" film series, starting with the 2006 film adaptation of "The Da Vinci Code", reprising the role in the 2009 film adaptation
Dr. Thorndyke Dr. Thorndyke Dr John Evelyn Thorndyke is a fictional detective in a long series of 22 novels and 40 short stories by British author R. Austin Freeman (1862–1943). Thorndyke was described by his author as a 'medical jurispractitioner': originally a medical doctor, he turned to the bar and became one of the first — in modern parlance — forensic scientists. His solutions were based on his method of collecting all possible data (including dust and pond weed) and making inferences from them before looking at any of the protagonists and motives in the crimes. (Freeman, it is said, conducted all