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- He was in fact a real person. The same goes for the Marx Brothers.
- In the show he was shown old but in reality he died at only 38 years old.
- Buckey O'Neill's appearance, including his uniform, is apparently based on Theodore "Teddy" Roosevelt, the 26th President of the United States and leader of the Rough Riders volunteer military forces.
- The Rough Riders franchise name is a reference to the Rough Riders volunteer military unit that fought in the Spanish American War of 1898.
- It is unknown who played Buckey O'Neill in the commercial/video for Rough Rider's Chicken.
- He is the Mascot of Rough Riders Chicken.