Firenze

Firenze is a centaur who lives in the Forbidden Forest. Centaurs are from Greek mythology; creatures who have the body of a horse and the head, arms and torso of a man.

Firenze and his herd help Harry Potter on more than one occasion, most notably in The Order of the Phoenix where they take away Delores Umbridge so that Harry and Hermione can get back to saving Hogwarts and fighting Voldemort, as usual.

In the Philosopher's Stone, Firenze rescues Harry and gives him a ride back to his friends, Hermione and Ron by giving him a ride on his back. This angers his herd who bevieve it is beneath them to give 'rides' to humans. Nevertheless, Firenze and his herd do support the humans in thier quest to rid the wizard world of The Dark Lord, Voldemort.