The HEARTBREAKING answer to: Why did Rex Say Lord Sidious, after killing he called Order 66. After Order 66 was called in the Clone wars Season 7 Episode 12, Captain Rex responded to Palpatine with «Yes, Lord Sidious». So why did Rex say Yes lord sidious? Why did Rex hesitate after Order 66? Why did Rex say find fives? Why did Rex not follow Order 66? Why did Rex call Palpatine Sidious? Why did Rex say Lord Sidious?