Panther

Panthers are fast, intelligent animals in the world of Narnia. They are described to be black colored and they are very loyal to Aslan.

Film
In the 2008 film Prince Caspian, many panthers were seen with the Old Narnians, where they become loyal to Caspian X and they fight at the Telmarine Castle Night Raid and the Second Battle of Beruna against the Telmarine army.