Didier is a gnome; tall for where he comes from in his forest, but short by comparison to all other gnomes. He  stands at 2ft 8in tall and weighs around 28lbs, and his slender frame gives the appearance of being slightly taller. His hair is brown, long, thick and messy, and the large orbs he has for eyes are a light brown and shine with an inner light. His skin is a light grey-green colour, common amongst most of his forest-kin.

Didi is thin and lean, and his hair suggests an impatient, curious and somewhat eccentric mind - moreso than usual for a gnome.