Banya Streamdog was a female otter of the outlaw otterclans on Green Isle, and the sister of Runka Streamdog. She was lithe and noted for her superb aquatic skills. The otter helped Leatho Shellhound to free Whulky and Chab and their families from underneath the pier. After the otterclans arrived at their safe refuge, Holt Summerdell, Banya, Birl Gully and Lorgo Galedeep investigated the expanse of the cavern. After that, she volunteered to accompany Leatho and Kolun Galedeep on the mission to free the remaining otter slaves from the warlord Riggu Felis' fortress.