Yes? Companies are made up of people and have founders who are "actual people". He also acted as an artist in various positions within his company (producer, actor, director, writer, animator). On the whole, his copyrights were owned by the company, though. He died in 1966, and that has no bearing on when copyrights owned by the Walt Disney Company will expire.
Who, specifically, is that 1928 copyright still encouraging to create new media? How does it benefit society more to have insanely-long copyright terms than it would to free up creations earlier for riffs, remixes, and so on?