Re: Uhura replacing McCoy/Bones?
Uhura 'lost out' because the character was written as a glorified extra from the start. Nothing more, nothing less. Nimoy and Shatner's egos had nothing to do with it.
Some say that his ghost haunts Gambon turn and that, if you listen closely, you can still hear the screams from his watery Jaguar grave.
All we know is, he's not The Stig but he is The Stig's undead predecessor!