Hammer-Head Granny
Known throughout the land for her amazing strength and immense power, Hammer-Head Granny developed her shark-like persona one afternoon in 2010 when she was casually walking home from her local supermarket.
She was unfortunate enough to have stepped on a weak-spot in the pavement and fallen into an underground pool of hammer-head sharks.
She was bitten badly but rather than sustaining injuries, she was blessed with the powers of the hammer-head shark.
Despite her terrifying temper, she is under strict self guidance to only use her amazing powers for good.
Like many her age, she is not comfortable with modern technology and relies on her friend/carer/sidekick Tessa to handle any gadgets that may be required, while she can sit in her chair and pet her blobfish.
So far she has saved the world from Salt Shortage and Over-Intelligent Technology...