"Leon Mandrake, the stage magician, who was known for his top hat, pencil line moustache and scarlet-lined cape, bears a strong resemblance to the comic strip character. In fact, Leon Mandrake had been performing for well over ten years before Lee Falk introduced the comic strip character and today most people would acknowledge the striking resemblance between them. Many diverse sources assert that the comic character was drawn to resemble Leon. Davis did meet Leon Mandrake; they became good friends and corresponded for years afterwards."
The above is from wikipedia. If interested in some magic history you can also click on the following link.
http://www.angelfire.com/ca2/mandrake/mandrake.html
When I lived in British Columbia I got to be good friends with the Mandrake family, (Especially Lon) and am pleased to say they are a really wonderful family.
Just thought I would throw this in here.