Gumdramon is a reptilian hero in Digimon Xros Wars: The Young Hunters Who Leapt Through Time. He can fuse with other Digimon and gain their powers, and can digivolve to Arresterdramon. He is partner of Tagiru Akashi.
He is voiced by Kumiko Watanabe who also voices Tomoki Himi in the Japanese Version.
Gumdramon's overall build is very similar to Veemon's, but has blue eyes, a small pair of yellow wings, and is covered with short purple fur much like Dorumon. He wears a red vest, a white X scar on his forehead and a hammer-like tail that can be extended at long distance for use as a melee weapon.
As Arresterdramon, he is a much more dragon version of Gumdramon. He has red armor on his chest, orange gloves and boots exposing his toes, and has a axe-like tail.
As XrosUpArresterdramon, he has larger wings, Lord Bagra’s arm, and his tail is attached to the Brave Snatcher.
While he originally wanted to use Tagiru merely to obtain the power provided by a human partner, Gumdramon eventually becomes his real friend. He calls himself the Digital World's "number one wild child". Tagiru and Gumdramon are very similar as both are overly enthusiastic and reckless: just like Tagiru aims to one day surpass Mikey, Gumdramon also aims to become stronger than Shoutmon.