Answer
Andy Hertzfeld, portrayed by Michael Stuhlbarg in the movie "Steve Jobs," was a key member of the original Apple Macintosh development team. As a software engineer, he played a pivotal role in creating the groundbreaking graphical user interface (GUI) and software architecture that defined the Macintosh's revolutionary impact on personal computing. Hertzfeld's expertise and contributions were instrumental in shaping the early success and legacy of Apple.