- “Just like old times, eh, Fox?”
- —Bill Grey
In his childhood, he was good friends with Fox McCloud, who convinced him to join the Cornerian Flight Academy with him some years ago. When Fox left the Academy to avenge his father's death at the hands of Andross, Bill went on to become an ace pilot and was given command of both the Husky and Bulldog squadrons. Fox knew that Bill would join Star Fox if he was asked to, but didn't want to pull Bill into his troubles.
Because the Bulldog and Husky squadrons were overrun on the Katina Frontline Base, Bill informed Corneria command of the situation, as well as the coming of a detected mother ship on it's way to the planet, therefore General Pepper asked Star Fox to help them out. Just before Star Fox arrived, Bill told the various fighters to hang in there as help was on the way. Fox was enthusiastic to see Bill after so long, even Bill too was thrilled about their reunion as well as passing compliments back, Bill reminded him that they could catch up later. Bill ordered the Huskys to cover the base, while the Bulldog unit was ordered by him to hold the Invader II's back and not let them through. Because the mission was accomplished on Katina, Bill was keen to return the favor by helping with opening the warp gates in Sector X, and help with fighting Gores on Solar.
Bill returned nine years after the Lylat Wars to help defend the Lylat System against the Anglar Blitz, whenever the Anglar Empire posed any threats towards Katina, piloting a customized Cornerian Fighter. He helped to defend Katina during the Lylat Wars and the Anglar Blitz. Bill also knew Falco and Slippy and was equally friendly with them as they came to his aid on Katina when Fox was out. Bill also told them about a certain new killer pilot in the Cornerian Air Force who had an icy heart, whom Slippy recognized but didn't want to believe to be Krystal. Bill confessed that he don't know the details between her and Fox but guessed she was in shock from it and started dating someone else, who was on the Star Wolf team. Bill said goodbye to Falco and Slippy and told them to tell Fox to say Hi for him.
- The name of the character is a reference to General William Grey, from the 1996 blockbuster movie Independence Day. This coincides with the portrayal of the battle of Katina, as it resembles the Furball (A large-scale aerial conflict)/Mothership Assault Scene from Independence Day.
- Bill's surname "Grey" uses the British spelling instead of the American version.
- Since many elements from Star Fox 2 were carried over to Star Fox 64, it's largely speculated that Bill was created as an equivalent or a replacement for Fay.
- He is the only playable character in Star Fox Command that appears in none of the endings, considering that James McCloud is somewhat referenced when Fox wears shades during his own fatherhood during the "Goodbye Fox" ending.
Names in Other Languages
|Japanese||(ビル・グレイ, Biru Gurei)|
- NINTENDO POWER Star Fox 64: Official Nintendo Player's Guide. Redmond, WA, Nintendo of America. 1997.
|Cornerian Army||Bill Grey • Captain Shears • Dash Bowman • Dog Soldiers • General Pepper • James McCloud • Krystal • Peppy Hare|
|Inhabitants||Beltino Toad • Grippy Toad • Vivian Hare • Vixy Reinard • Yaru de Pon|
|Companies||Bulldog Squadron • Cornerian Academy • Cornerian Defense Force • Corneria Precious Metals Ltd. • Free-As-A-Bird • G-Zero Grand Prix • Husky Squadron • Space Dynamics • Star Falco • Star Fox|
|Vehicles||Cornerian Assault Carrier • Cornerian Fighter • II • Cornerian Flagship • Cornerian Fleet • Cornerian Transport • General's flagship • Monkey Arrow • Pleiades-class Cruiser|
|Technology||AegisCam • Radar Sites Re-block • RE:BOT • Self-destruct program • Sentry Bot|
|Bases||Area 3 • Climate control center • Corneria City • Fichina Base • Katina Frontline Base • Katina Outpost • Orbital Gate|
|Star Fox Team|
|Leader(s)||James McCloud • Fox McCloud|
|All Games||Falco Lombardi • Peppy Hare • Slippy Toad|
|1997 / 2016||ROB 64 • Bill Grey • Katt Monroe • Pigma Dengar • Direct-i|
|2002-2006||Krystal • Lucy Hare • Amanda • Tricky • Free-As-A-Bird|
|2017||Miyu • Fay|
|Other||Marcus • Slippy's son • Peppy's granddaughter • Fara Phoenix • Saru|
|Vehicles||Arwing • Landmaster • Blue-Marine • Great Fox • Walker • Gyrowing • Roadmaster|
|Other Vehicles||Arwing II • Sky Claw • Bullfrog • Cloud Runner • Sky Bunny • Tadpole • Catspaw • Cat's Paw 2 • Great Fox II • Armoured Arwing • Light Arwing • Mothership|
|Star Fox Command|
|Main Characters||Fox McCloud • Falco Lombardi • Slippy Toad • Krystal • ROB 64 • Peppy Hare • Katt Monroe • Bill Grey • Lucy Hare • Amanda • Dash Bowman • Pigma Dengar • Andrew Oikonny • Wolf O'Donnell • Leon Powalski • Panther Caroso • Zako • Octoman • Anglar Emperor|
|Bosses||ZaZanga 9 • Splitter • Devil Shark • Octopod • Biobrain • Star Wolf (Wolf, Panther and Leon) • Death Crab • Pigma Dengar • Solar Satellite • Killer Bee • Dune Worm • Monarch Dodora • Grunner • Arrow Head • Anglar Emperor|
|Enemies||Anglar Starfish • Elite Fighter •|
|Locations||Corneria • Aquas • Asteroid Belt • Fichina • Katina • Sector X • Sector Y • Sector Z • Solar • Titania • Venom|
|Navigation||Plot • Missions • Gallery • Videos • Script|