An archeologist with an extreme knack and liking of puzzles, Professor Layton is extremely good at solving mysteries though is not a detective (as he corrects people many times). He takes in Luke as an understudy though he cares for the boy quite much. Overall, the professor is a serene, very intelligent, and caring person.
After solving the mystery of the Golden Apple in St. Mystere, he takes in Flora and becomes her guardian.
The Jewish population in Japan may be tiny (IT'S UNDER 9000!), but there's a long history of exchange between Jewish and Japanese culture. Here's some historical background and a list of stand-out Jewish characters in anime, manga, and light novels.