Hamuul Runetotem is the Archdruid of Thunder Bluff and a venerated leader of the tauren people. Taught by Malfurion Stormrage himself, he is the highest-ranked tauren in the Cenarion Circle.
As many of his people do, Hamuul believes very much in the balance between nature and the races of Azeroth. Hamuul was a childhood friend and fierce supporter of High Chieftain Cairne Bloodhoof, and teaches the ways of druidism to his honored brethren
After the Third War, Hamuul sought out the night elf Archdruid Malfurion Stormrage, befriending him and asking to be taught the druidic arts. Malfurion agreed, to strenuous and xenophobic objections of former student Archdruid Fandral Staghelm.
Hamuul joined the Cenarion Circle, and his new shan'do taught Hamuul many secrets of the wild and blessed him with the touch of nature, thus soon mastering the druidic arts with such proficiency that he rightfully earned the title archdruid for himself.
In the few years since that time, Hamuul has become an honored member of the (predominantly night elf) Cenarion Circle, and is recognized as the first tauren druid in nearly twenty generations.
Hamuul has a daughter, Bashana, who is a Cenarion Circle member like her father.