Billy Thompson, mostly known as the Kid, is a United States Marine.
Before Scarecrow and the Army of ThievesEdit
Through unknown circumstances, Billy Thompson joined the United States Marine Corps, where he gained the call-sign The Kid.
Though the Kid proved to be a kind and eager young Marine, he was diagnosed with a form of attention-deficit disorder that made him highly prone to suggestion. Since this would likely make him a liability to his team mates, it was decided that the Kid would need to be kept from active service.
Soon afterwards, the Kid was involved in a training accident which caused a slight deafness in his left ear.
Due to his superiors' concerns about both of his handicaps, they decided to send the Kid with a small team of Marines, led by Shane Schofield, and civilian contractors to test new equipment in the Arctic.