Guest Stars Lin-Manuel Miranda as Dr. Ruben Marcado John Carroll Lynch as Will Hayes Toni Trucks as Patricia Rivers Kimberly Fairbanks as Nurse #1 Samm Levine as Josh Stern William Zielinski as Donald White Timothy Wright as Nurse #2 Sartaj Phanda as Cab Driver Mary Jane Myers as Secretary Lauren Courtney-Norman as Mrs. White Hayden Saunier as Floor Nurse Brendan McHale as Cole Flynn Stephanie Roth Haberle as Sienna Rowe Eoin O'Shea as Dennis Rowe Clem Cheung as Calvin Jason Tam as Brandon Uncredited Nicole Lee as Train Passenger