This just in from THR:
Less than a year after Raising Hope ended its run, Dillahunt is going back to the network for a guest turn on Brooklyn Nine-Nine, The Hollywood Reporter has learned.
On the second-year cop comedy, Dillahunt will play a detective described as the best in the NYPD — a guy whom both Jake (Andy Samberg) and Amy (Melissa Fumero) would do anything to impress. Not surprisingly, the ace detective will become a love interest for Amy, bringing out Jake’s jealous side.
An exact date for Dillahunt’s episode has yet to be worked out, but it will likely run this season in the spring. He’ll appear in one episode for the time being.