At one point, Sam Bennett played by Taye Diggs tells Pete played by Tim Daly that he likes Pete's new girlfriend, Lisa. Lisa was played by Diggs' then real life wife, Idina Menzel.
Adam Lazarre-White plays 2 different characters. He is Phillip, who gets his heart donated to is pregnant wife (she thinks he was murdered by his brother) on What You Do for Love (2009) and the Oncology Resident that gives Izzie a follow up consult on Goodbye (2009).