He is voiced by Takeshi Kusao in the Japanese Version and Kyle Hebert in the English Version.
Greymon has the same overall shape as Greymon, but holds itself in a more realistic, bestial position. Its helmet has cranial spikes like a GeoGreymon, and it has similar bony protrusions on its knees. Its skin is blue with orange stripes, the opposite of the original Greymon, and its tail is tipped with a bayoneted gunmuzzle.
Greymon is fiercely loyal to Christopher, fearlessly taking on any opponent his general commands him to.
Like his human partner, Greymon valued strength above everything else and had no respect for Shoutmon as he tends to insult his size.
Prior to being formerly introduced to the Fusion Fighters at the Lake Zone, Greymon appeared when Christopher needed to execute hit and run attacks on the Bagra Army. During the collapse of the Disc Zone, Greymon, MailBirdramon and Shoutmon were trapped amid the rubble. Even though Greymon and MailBirdramon initially gave up hope, seeing Shoutmon's determination both earned Greymon's respect and gave him the will to survive.
- He share same English Voice Actor with Dorulumon, Ballistamon.
- He also voices Greymon, MetalGreymon, WarGreymon and Omnimon in Digimon Adventure tri..