At the end of the closing credits, Jerry's voice can be heard from inside a closed locker saying, "Mr. Lewis? Mr. Randall? Mr. Phillips? Hello!?" This is a reference to show producer, Clyde Phillips, whose company graphic is shown immediately after the credits.
Mary Ellen Trainor appears as Parker's mom. She was replaced by Anne Bloom for the remainder of the 1st season, but returned for seasons 2 and 3.