Maximilian is a Doberman Pinscher who works in the Train Station with Station Inspector Gustave Dasté. His job was to get the homeless orphans (especially Hugo Cabret). Maximilian is trained very well, and is incredibly skilled at sniffing and chasing.

Maximilian isn't present in The Invention of Hugo Cabret for some strange reason, as those who have a police job at train stations are always accompanied by dogs that serve as police dogs, including Dobermans.