One of the more enigmatic characters in Star Fox 64 is the tanuki or raccoon dog that only appears in its training mode. On the official Japanese Star Fox 64 website, Slippy reveals that his name is ヤル・デ・ポン (Yaru De Pon), and that he is the president of Space Dynamics, the manufacturers of the Arwing and other vehicles the Star Fox team utilizes in their missions.

His surname seems to reference the du Pont family (ポン spells both "Pon" and "Pont"), a wealthy American family who made their fortune selling gunpowder, and later chemicals and motor vehicles. A popular rumor is that Henry A. du Pont secretly sold gunpowder to the Confederacy during the Civil War; fittingly enough, Slippy implies that Yaru de Pon is involved in "shady weapon deals", suggesting that he might be supplying Andross' forces as well.

Yaru de Pon is also notably the only character in the original Star Fox 64 to not have any voice acting. This was addressed in its 3DS remake, Star Fox 64 3D, where he is now properly voiced by Jay Ward (who also voices Wolf O'Donnell in Super Smash Bros. Brawl and Super Smash Bros. Ultimate, as well as the Nintendo Switch version of Starlink: Battle for Atlas) in the English version, and Kunpei Sakamoto in the Japanese version.

According to the brochures distributed with Star Fox 64 3D in Japanese retail stores in 2011, it was Pigma Dengar who designed the Star Fox logo during his tenure with the original team, before he betrayed them.

The North American release of the game was originally announced to be September 11, 2011, but it was pushed forward by 2 days, likely so that it wouldn't coincide with the 10-year anniversary of the terrorist attacks carried out against the United States on that same day.

According to Takaya Imamura in a 2011 Nintendo Dream magazine interview, Fox McCloud's mother is actually still alive and well on their home planet of Papetoon. This is in contrast with the 1994 Nintendo Power comic series, where it was revealed that Fox's mother (named "Vixy Reinard") was accidentally killed by a car bomb planted by Andross that was intended for her husband ("James" as he would referred to in the games starting with Star Fox 64).

According to Imamura, Fox's mother disapproved of her son following in her husband's footsteps and potentially getting himself killed the same way, and thus they have become estranged from each other, though they haven't exactly broken off from each other completely. Imamura even hints that she's secretly supporting her son's actions from behind the scenes.