Fox & Lightning Zeta Gundam - Matches his leadership and upgrade version of Zeta Gundam  
Krystal & Gundam Engage Zero - Feminine type Gundam matches her appearance  
Falco & Airmaster Gundam - Red color matches his outfit and his style  
Slippy & Victory 2 Gundam - Yellow trim color matches his outfit  
Lucy, ROB & Haro - Crewmen of Great Fox  
Peppy & Full Armored 7th Gundam - Retired Veteran  
Bill & ZZ II - Matches his childhood friend Fox  
Fara & Re-GZ Custom - Back of the wings matches her color  
Miyu & Gundam GP01Fb Full Burnern - Matches her style and her speed  
Fay & Gundam GP03S Stamen - Matches her color  
Katt & Saviour Gundam - Color resembles her ship Catspaw  
Cool & CGUE Type D.E.E.P. Arms - Matches his color  
James & Zeta Gundam - Former Pilot of Zeta Gundam  
Marcus & Zeta Plus A1 - Matches the color of his outfit, Next Generation Gundam Pilot of Star Fox Team from the future  
Cornerian Soldiers & their Mobile Suits - Grunt Types  
Cornerian Commanders & their Mobile Suits - Commander Types  
Wolf & Sazabi - Wolf like his Wolfen's red color  
Leon & Schuzrum Galluss - Wants to turn his enemies into scrap metal  
Panther & Rozen Zulu - Name referencing rose and matches the beauties

UPDATE: Bill Grey new appearance

Star Fox Characters and their Mobile Suits (All characters - UPDATE 7)