Robert Lanyon is Jekyll’s closest friend and co-founder of the Society for Arcane Sciences. Jekyll and Lanyon have been inseparable ever since they met at boarding school. A child of the aristocracy, Lanyon introduced Jekyll to the ways of high society and taught him to become the gentleman he is today. Over the years, Lanyon has cultivated the attitude of a nihilistic dandy to weather the daily trials and tribulations of upper-class life. He believes himself far too clever to care about anyone or anything except himself but seems to have a soft spot for Henry. Despite his attitude, he's a very dramatic person with a flair for theatrics.