Throw It In!: When Stella says "Best part of the job," and kisses Mac on the cheek. According to Melina Kanakaredes, while filming that scene, she just spontaneously kissed Gary Sinise and they decided to keep it in.
Bess Wohl, who plays the bride's friend, Aubrey, reappears in a few episodes of Season 4 as a lab tech named Kendall Novak.
