S3, E10: Recent events strain Burke and Cristina's relationship; Meredith's half sister enters the hospital; Mark and Derek must work together when two close-knit brothers seek medical help.
George Dzundza
Brooke Smith
Debra Monk
Jennifer Aspen
Greg Pitts
Tim Griffin
Mandy Siegfried
Jason Sklar
Randy Sklar
Mare Winningham
Kate Burton