Valka

Valka is a strong, uncompromising and feral vigilante who turns out to be Hiccup's long-lost mother and the wife of Stoick the Vast. After being taken by a dragon shortly after Hiccup was born, the whole village of Berk assumed she was dead. Valka, however, chose to stay away out of her own accord, believing her family would be better off without her. About two decades later, she accidentally crosses paths with her son Hiccup during his journey to stop Drago Bludvist and finally reunites with her husband Stoick.

Valka's main dragon is a Stormcutter named Cloudjumper, the same dragon that 'abducted' her when she was twenty.