<Li> Sam Waterston as Sol Bergstein, a successful divorce lawyer and Frankie's former husband who later becomes Robert's husband </Li> <Li> June Diane Raphael as Brianna Hanson, older daughter of Grace and Robert, head of the company founded and once run by Grace </Li> <Li> Baron Vaughn as Nwabudike "Bud" Bergstein, son of Frankie and Sol, and also a lawyer at Robert & Sol's firm </Li> <Li> Brooklyn Decker as Mallory Hanson, younger daughter of Grace and Robert, a wife and mother of four children </Li>

What is bud's full name on grace and frankie