Growless Rumbleroar, is a magical talking lion who has been, in the past, mistaken for a lion known as Aslan by a certain family of 4. The children had been hexed and Rumbleroar was sadly unable to completely heal their mental illness. "The rug-rats called Mars and our school, Narnia, and I was known to them as Aslan."- Rumbleroar,1947     Rumbleroar was deeply troubled when he was inquired by his good friend,Dumbledore,the four had hired a man, C.S. Lewis to write what had happened on their travels and adventures in Narnia (Pigfarts, Mars). He eventually came down to Earth to visit with Dumbledore, but instead, ended up writing a contract with Disney to play Aslan. "A strange turn of events." He recalls. Note: After finishing each of the now 3 films he would return to Pigfarts to continue to help over see the school. 

Once the third film was out, he decided to take a long awaited break from Hollywood. In this time period Dumbledore had been "killed". When Rumbleroar heard if this news he apparated himself onto Hogwarts grounds. Finding Dumbldore all alone and dying he rolled the unconcious ex-headmaster of Hogwarts onto his own back and flew him through space to Pigfarts-he used a special charm that gave Dumbledore the ability to breath in space. After nursing the intensely ill Dumbledore back to health he came up with the Co-Headmaster proposition and offered this to Dumbledore, his good friend. Dumbledore was more than happy to accept and was-still is- appointed the position. 

Growless Rumbleroar is said to, on all fours, stand at 4'6. His body is a soft neutral beige while his mane is more golden and said to be, "magnificent" by all who see it. His eyes are a brilliant gold. He is said to be the "wisest, kindest, most intelligent creature in the universe." In the comparisons between Rumbleroar and Dumbledore, Rumbleroar usually wins. "Dumbledore? Pff. What an old coot! He's nothing like Rumbleroar!" - Draco Malfoy, on the subject of Rumbleroar vs. dumbledore.