Aaron Lancaster is an small male in his early forties. He has short brown hair and brown eyes which have a inquisitive look about them and he has a rough stubble beard. His skin is weathered and lightly tanned, and he has a large scar on his left arm extending from his elbow to his wrist.

The man wears practical clothing designed for out-door use, often cargo pants and a jacket with extra pockets and wears rough mountain climbing shoes. Aaron can often be seen carrying a medical pack and a small rectangular device on his belt, a commdot in his left ear, a wrist computer on his left wrist and a small backpack.