Thomas Gibson, who portrayed Special Agent Aaron Hotchner on Criminal Minds for 11 seasons, was one of the show’s most beloved characters. Hotchner, a former prosecutor, led the Behavioral Analysis Unit (BAU) with unwavering commitment.
His leadership, often seen as fatherly, helped steer the team through many intense cases. However, his personal struggles and on-set issues ultimately led to his departure.
Hotchner’s character was integral to Criminal Minds, with storylines exploring his challenges in balancing his demanding job and family life. His struggles with maintaining a relationship with his wife and son were central themes.
His marriage eventually fell apart due to the pressures of his work, and he later focused on rebuilding his bond with his son, Jack. Hotch’s ongoing case with serial killer George Foyet, also known as The Reaper, haunted him throughout the series, culminating in tragic personal losses and intense emotional turmoil.
In the later seasons, Hotch’s behavior became increasingly erratic as his obsession with capturing Foyet took a toll on him. This reached a breaking point when Foyet killed Hotch’s wife and tortured him in the Season 5 premiere. Though Hotch ultimately killed Foyet, the tragedy left lasting scars, and he stepped down as Unit Chief, allowing Derek Morgan to take over.
Hotch’s departure from Criminal Minds was heavily linked to actor Thomas Gibson’s firing in Season 12. The actor, who had been with the show since its inception, cited “creative differences” with the production team.
Though rumors of Gibson’s on-set behavior issues had circulated, including an incident where he allegedly shoved an assistant director and later kicked a crew member, the actor denied these allegations. Despite the controversies, Gibson acknowledged that the differences with the show’s team led to his exit.
In Season 12, the show covered Hotch’s absence by introducing a storyline involving serial killer Peter Lewis, aka Mr. Scratch. Hotch’s character was revealed to be on a special assignment, but by Episode 6, it was confirmed that he had entered Witness Protection with his son after Lewis became a direct threat to their lives.
Hotch’s final arc made sense given his past trauma with Foyet, and the decision to protect his son was fitting. Ultimately, Hotch left Witness Protection, chose to quit his job, and prioritized his role as a father. This marked Gibson’s final appearance as Hotch on Criminal Minds.