2924. Master Viper

Master Viper is a green snake with two small lotus flowers on top of her head. Although she has a serious birth defect for her species, being born with barely visible venomous fangs, she compensates with her strength, sinuous nature, beauty, and precision. In defiance of the villainous stereotype of snakes, Viper is the most charming, kind, compassionate and sweetest of the Five as demonstrated with her quickly developing empathy for Po as his indomitable tenacity became obvious and being the only one who didn't mock him in any way.
In Secrets of the Furious Five, Viper was born the loved daughter of Great Master Viper, protector of the village where she lived who relied on his venomous fangs to fell his enemies (referred to by Po, and later on by the Great Master as the awe-inspiring awesomeness of his "Poison Fang Technique", said to fell 15 gorilla warriors and a mid-size crocodile in one strike), and his beautiful wife. The Great Master hoped she would carry on his legacy once she was born, but she was without fangs and never developed them as she grew up, much to the dismay of her father. To make her father feel better, Viper took up ribbon dancing at age six, blossoming into the best dancer in the village. During one Autumn Moon Festival, Viper was too timid to attend the festival and stayed home with her mother. But when her father fought against a gorilla bandit who attacked the village and used venom-proof armor to shatter the Great Master's poison fangs, Viper, seeing him in trouble, mustered the courage she needed to defeat the gorilla by confusing him with her dancing skills and tying him up with her ribbon. Thus her father's legacy was secure with his daughter becoming a mighty warrior on her own terms.
In Kung Fu Panda Holiday, it is revealed that Viper has sisters whom she loved to cook with during the Winter Feast, but in Secrets of the Furious Five, she is shown as an only child; it may be possible that Viper is merely the firstborn in her family and her sisters could all be younger siblings, though this remains unconfirmed.
In Kung Fu Panda 2, Viper is shown to be the most transparent in her feelings and the most openly compassionate. When the group, hidden inside a Chinese dragon costume, witness the wolves' brutal treatment of the peasants of Gongmen City, Viper's face is shown to be openly horrified. She is also shown to be able to pick locks with her tail.