Will Arnett

Will Arnett is getting animated this fall.

Arnett has booked a guest-starring role on the upcoming 25th season of The Simpsons, TV Line reports.

Summer Preview: TV stars go to the movies

He'll play Detective Gratman, the head of the FBI's anti-piracy unit who's investigating Homer for illegally downloading a movie, according to TV Line.

The episode, fittingly titled "Steal This Episode," is scheduled to air in December.