Even hearing Nancy Cartwright bust out her best Bart Simpson didn’t tip him off that she works on The Simpsons, and he clearly was at a loss about why she was channeling a cartoon character at random.
His reaction when she finally introduced herself as the person who plays Bart was pretty much the most adorable thing that has ever come out of a snack sales pitch.
Young James just happened to ask a friendly-looking woman at the mall to support his school (and his attempt to win the top sales prize) without having any idea that she’s famous on the voice acting circuit.