Harmon is only the latest celebrity targeted for firing because of online content from his past. While the answer turned out to be "yes" when it came to Disney and Guardians of the Galaxy director James Gunn, Adult Swim's reply to Harmon's situation was, in effect, "nope."
The sketch in question was a satirical "pilot" for an imaginary TV series called Daryl, a parody of the serial killer drama Dexter. In Daryl, the lead character (played by Harmon) would travel back in time and attempt to stop modern serial killers by sexually assaulting them when they were babies. Harmon simulates the rape of a baby in the video using a doll.
Harmon released an apology, stating:
In 2009, I made a "pilot" which strove to parody the series Dexter and only succeeded in offending. I quickly realized the content was way too distasteful and took the video down immediately. Nobody should ever have to see what you saw and for that, I sincerely apologize.
Meanwhile, Adult Swim's statement acknowledged that while the video displayed "poor judgement," it was a mistake for which Harmon had already apologized:
At Adult Swim, we seek out and encourage creative freedom and look to push the envelope in many ways, particularly around comedy. The offensive content of Dan’s 2009 video that recently surfaced demonstrates poor judgement and does not reflect the type of content we seek out. Dan recognized his mistake at the time and has apologized. He understands there is no place for this type of content here at Adult Swim.
Harmon removed the video years ago, but this being the internet, nothing is ever fully gone, and sure enough, people discovered it and began to share it. Soon Harmon was pulled into the same discussion that Gunn was involved late last week.
Harmon is working on Rick and Morty Season 4 after the series was picked up for 70 more episodes, and it appears as though he will continue to work for Adult Swim.