Share 'Go watch #Moxie on @netflix like NOW! I'm very proud of him and he is my brother.' Louis-Dreyfus, 60, shared an enthusiastic, 'Yah!!!!!' when she shared it on her Twitter page two days later. Family support: The Seinfeld star's oldest son initiated the message of encouragement by sharing a photo of Charlie, who happened to be in the middle of an interview for Moxie Creative family: Like brother Charlie, Henry Hall, 28, also caught the artistic bug from his mother, Julia Louis-Dryfus and father, Brad Hall Along with her directorial duties, Poehler also stars as the mother of newcomer Hadley Robinson, who plays the teen Vivian in Moxie.