The Office revolutionized the sitcom genre with its cringe comedy. With a less-than-stellar first season, The Office broke rules when it only got better with ensuing seasons, mainly thanks to brilliant characters like Pam Beesly. Portrayed by Jenna Fischer, Pam was the sweet but witty receptionist of Dunder Mifflin Scranton, and the heart and soul of the show.
Source:https://www.cbr.com/office-best-pam-episodes/