Charles Foster Kane is a fictional character who is the subject of Orson Welles' 1941 film Citizen Kane. Welles played Kane (receiving an Academy Award nomination), with Buddy Swan playing Kane as a child. Welles also produced, co-wrote and directed the film, winning an Oscar for writing the film. Inspiration. The general consensus is that publishing tycoon William Randolph Hearst is the primary inspiration behind Charles Foster Kane.
https://en.wikipedia.org/wiki/Charles_Foster_Kane