California native Brianni Walker is an award-winning entertainer and all-around powerhouse. At just 13 years old, Walker has already proven herself to be an incredibly versatile talent. From acting to rapping to dancing, Walker has done it all. She is best known for her role on the hit Brat web series Mani, and has also appeared on shows and movies such as Sam & Cat, Insecure, Captain Underpants and Ben Affleck's Live By Night. Walker's hard-working spirit is a testament to her zodiac sign, Capricorn, and has earned her multiple Young Entertainers and Young Artist Awards nominations.