Steve Carell is the person screaming in the intro to the show season 1-2.
A recurring joke throughout the show, many of the characters' names (usually guest stars) are conspicuously named for very famous people, or otherwise well-known pop culture references. Notable entries: Jay Geils (J. Geils Band), Dr. Scholls, Dr. Edelweiss, Wilson Phillips, Jonathan Dough (John Doe), Kobyashi Maru
In November 2015, it was announced that, in an unprecedented move, TBS would air the first season of the series in a 25-hour marathon, beginning on January 17, 2016. It consisted of the first ten episodes of the series, repeated five times over two days.
Angie's partner's name, Jay Giles, is taken from the rock band The J. Geils Band as is the victim Alan Parsons from the Alan's Parsons Project.
Heather Graham guest stars on several episodes. She previously worked with Rashida Jones's mother, Peggy Lipton, on Twin Peaks (1990). In fact, they played sisters.