Origin
Johnathan Crewe is a mean man suspected the murder of Ephraim Saunders. The suspicions were confirmed when Doc Strange overheard Johnathan say he pushed Ephraim out the window of the National Building to cover up the theft of the map to the Lost City. In a race to find the treasures of Lost City Doc and Crewe race to Tibet to find it. Crewe gets there first and tries to kill Strange but fails and in a final fight Johnathan ends up falling into a “bottomless” crevasse.
Creation
Crewe was a Nedor Comics character who in now in the public domain.