I have heard this theory multiple times and none of the explanations have sold me on it . Though a friend that is totally sold on it won ' t stop so the furthest I could push myself to somewhat agree to keep him from pestering me was to say that since the company Logan and William are working for probably bought the Park it wouldn ' t be that much of a stretch for them to add characters based on the big boss . So they are definitely not the same individual , one is a human and the other is a host . It could be a coincidence or just because the big boss wanted a bad ass host based on himself . Then my friend said but uhhh if Logan is the man in black than surely he can not be the owner of the park . well no duh ! MiB is William who was either kicked out or left the company after he drove Logans sister his wife to kill himself because he got obsessed with the park after falling in love with ~~ Delores ~~ Dolores and more or less severing his connection to the real world .