“Guest stars have been a thing for Brooklyn Nine-Nine since the very beginning, when Stacy Keach, Mary Elizabeth Ellis, and Patton Oswalt showed up for one-offs, and Craig Robinson, Marilu Henner, and Kyle Bornheimer each stepped into limited but recurring roles. (Remember: Doug Judy is still around!) But after season two took several paces back from inviting new celebrity cameos (outside of Eva Longoria, Nick Cannon, and Chris Parnell), season three appears to be overcompensating: to date, the series has been inundated with guest spots for Paul F. Tompkins, Mary Lynn Rajskub, Bill Hader, Anders Holm, Riki Lindhome, Neil Degrasse Tyson, Niecy Nash, Damon Wayans, Jr., Allan Graf, and Katey Sagal.” (Via Paste Magazine.)
A Constant Visual Feast 