http://www.furaffinity.net/user/sirgallade/
https://twitter.com/gallade_sir

Sir Gallade. Also known as Dr. Gallade or simply the nickname "Gally"

Usually depicted as either a green-haired human (see his appearances in the Silver Soul comics and related projects) or as an actual Gallade (where he usually dawns his signature white tophat and/or red necktie).

Owned by user of the same name (see links above).
If you wish to include Gally in fanart/fanworks, feel free to reach out via the links above - per owner.