Characteristics
The mysteries surrounding his ageless character were heavily discussed among the fan community. Although being present in scenes from the 1860s to the 2000s, Richard does not appear to age. In "The Man Behind the Curtain" Ben says "You do remember birthdays, don't you?" to Richard. When asked at the 2008 Comic-Con International how old Richard is, lead Lost actor Matthew Fox guessed 125, which Lost producer Damon Lindelof said was wrong. When Locke asks Juliet how old Richard is in "Jughead", she simply replies "old". In "Follow the Leader", Ben describes Richard as an advisor "who has had that position for a long, long time." In "Dr. Linus", Richard mentions he doesn't age because Jacob touched him. In "Ab Aeterno" it is revealed Richard lived in 1867, being around 35 years old. Since the current storyline takes place in 2007, that makes Richard around 175 years old.
Read more about this topic: Richard Alpert (Lost)