Character Arc
Andy Bernard arrives at Dunder Mifflin Scranton as a transfer from the Stamford branch — a preppy, anger-prone Cornell graduate who desperately wants to be liked and is willing to suck up to anyone in authority to get ahead. His early appearances are defined by his explosive temper (culminating in punching a hole in the wall) and his relentless brown-nosing.
After anger management, Andy returns as a softer, more sympathetic figure. His pursuit of Angela, obliviousness to her affair with Dwight, and ill-fated engagement provide some of the show's most painfully funny storylines. His musical talents — particularly his a cappella singing and banjo playing — become endearing character traits rather than mere annoyances.
Andy's appointment as regional manager in Season 8 represents his peak, but Season 9 sees a controversial character regression. His extended absence on a boat trip, his neglect of Erin, and his increasingly selfish behavior alienated many fans who had grown to root for him.
His finale arc redeems him somewhat, as Andy achieves viral fame through his Cornell audition video and reflects on the nature of happiness with the poignant observation: "I wish there was a way to know you're in the good old days before you've actually left them." This line has become one of the most quoted from the entire series.