Michael says that his favorite character on Glee is "the invalid", played by Kevin McHale. Kevin appeared in Launch Party (2007) as the pizza delivery boy who was locked in the conference room.
The Chinese that Creed translated means "Seahorse: Do not mix with alcohol".
When complaining about Gabe, Michael confirms that Dunder Mifflin VP Charles Miner (Idris Elba)--last seen in the season five finale--had been fired, presumably let go at the same time as David Wallace during the Sabre takeover in season 6.
A different baby plays CeCe from the one in the previous episode ("Christening").