Guest Stars Jonathan Silverman as Dr. John Lieberman Eyal Podell as Mark Ridgeway Ewan Chung as Dr. Wong Patrick Quinlan as paramedic #3 Cara Pifko as Beth Hostetler Tara Summers as Allison McDaniels Mason Cook as Quinn McDaniels Kevin Shinick as Levi Hostetler Sonya Eddy as Joanne Whitman Matt Crabtree as Gordon Willis Sharon Muthu as Sharika Kumar Rachael Drummond as Mrs. Wilson Robb Reesman as Surgeon Leigh Durrell Anthony Giangrande as Dr. Thomas Ottobrini Nija Okoro as Aisha Ali Iyin Landre as Wei Yoo Luke Cosette as Ty Lou Volpe as Mr. Sutcliff Phong Le as Hyun Kim Laura Richardson as Nurse Veronica Woolward Betsy Baker as Mrs. Sutcliff Blake Robbins as Dr. David Martin Jonny Lee as James