Politics & Public Service:
* Condoleezza Rice: Former U.S. Secretary of State and National Security Advisor.
* David McCullough Jr.: Former mayor of Pittsburgh. (Note: His father, David McCullough, the Pulitzer Prize-winning historian, is also associated with Pitt, though not as a graduate.)
Arts & Entertainment:
* Annie Dillard: Pulitzer Prize-winning author.
* Michael Keaton: Academy Award-nominated actor.
* John Leguizamo: Emmy and Tony Award-nominated actor.
Science & Technology:
* Many notable researchers and scientists: Pitt has a strong research focus, and many prominent figures in various scientific fields have graduated or done postdoctoral work there, but listing them all would be extensive. Specific names would depend on the scientific field in question.
Sports:
* Numerous athletes, but generally, specific names require specifying the sport.
It's important to note that this is not an exhaustive list. Pitt has a large alumni network, and many other notable figures have graduated from the university. To find more alumni, it's best to search the University of Pittsburgh's alumni website or conduct a targeted search based on profession or field of interest.