Michael Scott: This is an environment of welcoming, and you should just get the hell outta here.
In this episode Pam and Jim are talking about how Jim used to have a crush on Pam when she first started here. This implies that Jim was working here when Pam was hired. However, in 4-3: Launch Party Pam says that when Jim first started working there she said, "Enjoy this moment, because you're never going to back to this time before you met your desk-mate, Dwight." These two scenes contradict each other.
Creed Bratton plays the voice of the Industrial Coal Mine Shaft employee that Michael talks to on the phone when he's trying to come up with some surprise for the staff.