Before taking on his role as Whitney's obnoxious know-it-all lab partner in "The Sex Lives of College Girls," Hall appeared in shows like "Big Shot" and a film titled "Moxie." However, his first speaking role came about in his mother's show "Veep," where she starred as politician Selina Meyer, and he had a cameo in season seven playing a character named Eddie Axler.
"It was actually (showrunner) Dave Mandel's idea, God bless him," Louis-Dreyfus shared during a 2019 appearance on "Late Night With Seth Meyers," per the Chicago Tribune. "There was this role of an inappropriately young boyfriend to a record executive who's in his 50s, and Dave said, 'Hey, maybe Charlie can play that part'' And I said, 'Sure, I'll ask him.'" Even though the actor supports her son's career today, Louis-Dreyfus admitted she was "terrified" about Hall's cameo because she "thought he might screw it up." "Sorry, honey."