From Variety, ‘She-Hulk Disney Plus Series Casts Tatiana Maslany in Lead Role‘:

The series centers on lawyer Jennifer Walters (Maslany), cousin of Bruce Banner, who inherits his Hulk powers after she receives a blood transfusion from him. Unlike Bruce, however, when she hulks out Jennifer is able to retain most of her personality, intelligence, and emotional control.

What a great pick for She-Hulk.