A.P. Bio

Lore & Background

The series centers on Jack Griffin, a disgraced former Harvard philosophy professor who is forced to return to his hometown of Toledo, Ohio, to work as an AP Biology teacher at Whitlock High School. He refuses to teach biology and instead recruits his honor-roll students to help him get revenge on his rival Miles Leonard, who took his dream job. In the second season, Jack uses his students to investigate how people in Toledo find happiness, hoping to write a bestselling book.

The show was created by Mike O'Brien, who also serves as a recurring writer and executive producer alongside Seth Meyers, Lorne Michaels, Andrew Singer, and Michael Shoemaker. The main cast includes Glenn Howerton, Lyric Lewis, Mary Sohn, Jean Villepique, Paula Pell, and Patton Oswalt. The series was met with mixed reviews in its first season, but subsequent seasons garnered a much more positive reception.

Reader's Guide

A.P. Bio is significant as a television series that was cancelled after two seasons on NBC, then revived for a third season on NBCUniversal's streaming service Peacock, and later cancelled again after four seasons. The series premiered on February 1, 2018, on NBC as a mid-season replacement, and aired its second season from March 7, 2019, until June 13, 2019. After NBC cancelled the series on May 24, 2019, the decision was reversed in July 2019, and the third season premiered on Peacock on September 3, 2020. Peacock renewed the series for a fourth and final season on December 17, 2020, which premiered on September 2, 2021. The series was cancelled on December 6, 2021, after four seasons. Its legacy includes a shift from broadcast to streaming, and a critical reception that improved after the first season.

Did You Know?

• The show moved from NBC to Peacock for its third season after being cancelled and then revived.
• Patton Oswalt plays Principal Ralph Durbin, who was in a ska band in the 1990s.
• The first season holds a 66% score on Rotten Tomatoes based on 32 reviews.

Premise & Central Conflict

A.P. Bio is built around a single, combustible premise: a brilliant but bitter philosophy professor who has been humiliated into teaching high school biology. Glenn Howerton's Jack Griffin lost his coveted Harvard professorship to his rival Miles Leonard and ended up back in his hometown of Toledo, Ohio, to take a position at the fictional Whitlock High School. He resides in the house his late mother once owned and makes it abundantly clear to his class that biology is not on the syllabus. Instead, he treats his room of honor-roll students as a small army, promising them good grades in exchange for carrying out his schemes—whether that means getting revenge on Miles or simply finding a way out of the job. The show's engine is this refusal: a man who sees himself as far above the material he is supposed to teach, and the chaotic, often endearing consequences of that refusal playing out in a small-town high school.

The Ensemble Cast

Beyond Jack, the show's world is populated by a colorful cast of Whitlock High faculty and students. Three female teachers—Stef Duncan (Lyric Lewis), Mary Wagner (Mary Sohn), and Michelle Jones (Jean Villepique)—form a tight-knit friend group that orbits Jack's chaos. Principal Ralph Durbin, played by Patton Oswalt, is a well-meaning but childlike administrator who plays keyboard, sings, and was once in a ska band. On the student side, each AP Biology class member has a distinct voice: Sarika Sarkar is the overachieving teacher's pet who resists Jack's plans; Marcus Kasperak is his least favorite student and a constant target of mockery; Heather Wilmore is a mousy girl who becomes one of Jack's most loyal underlings; Anthony Lewis is smart, sassy, and surprisingly strong; Victor Kozlowski is intensely awkward and slow-talking; and Dan Decker, a former Florida bully enrolled as punishment, gradually softens and finds a romantic connection with Heather. The ensemble gives the show its warmth and variety.

Production History & Critical Reception

A.P. Bio launched on NBC on February 1, 2018, as a mid-season replacement, and ran for two seasons on the network before its final broadcast episode aired on June 13, 2019. The show then transitioned to the streaming platform Peacock for its later seasons. The creative engine behind the series was Mike O'Brien, who created the show and served as a recurring writer. The executive producer team included Seth Meyers, Lorne Michaels, Andrew Singer, and Michael Shoemaker. Reception was not immediately warm: the first season drew mixed reviews from critics. However, the show found stronger footing in subsequent seasons, earning a noticeably more positive reception as its voice sharpened. Despite that improvement, the series was ultimately cancelled in December 2021 after four seasons. The shift from broadcast to streaming and the eventual cancellation marked a relatively brief but distinctive run for a show that leaned heavily on its central character's bitterness and the small-town Ohio setting.

Narrative Arcs & Character Evolution

The show's plot evolves meaningfully across its four seasons. In the first season, Jack's primary drive is revenge against Miles Leonard, the Stanford professor who stole his Harvard position, and he recruits his students as unwitting accomplices. By the second season, his ambition shifts: he tasks his class with investigating how the people of Toledo find happiness in their everyday lives, material he believes will fuel a bestselling book. Character arcs deepen over time. Dan Decker transforms from a confused, forcibly enrolled bully into a kinder, more charismatic figure who develops a romantic interest in Heather. Grace, initially a cheery student, reveals a mysterious dark past and a tendency toward morbid commentary starting in season two. Marissa, present in every season, receives meaningful characterization only in the third-season finale, where she bonds with Jack over their shared disdain for Toledo's annual Katie Holmes Day. The series finale sees Stef Duncan give birth to a daughter she names Evelyn Jack Duncan, tying the ensemble's journey to a quiet, personal moment.