Patrick Brammall and Tim Meadows will return to voice their respective characters.
Brammall co-created the comedy with Trent O'Donnell. They executive produce with Will Ferrell, Adam McKay, Joe Farrell, Jason Burrows and Joe Hardesty. CBS Television Studios, Funny or Die, Gary Sanchez Productions and Jungle Entertainment produce.
"We are so excited to welcome back the hilarious team behind No Activity for a fourth season and can't wait to show fans their favorite mediocre law enforcement agents brought to life in animated form," said Julie McNamara, Executive Vice President and Head of Programming, CBS All Access.
