Guest Stars John Carroll Lynch as Will Hayes Lin-Manuel Miranda as Dr. Ruben Marcado Toni Trucks as Patricia Rivers Samm Levine as Josh Stern Kimberly Fairbanks as Nurse #1 Brendan McHale as Cole Flynn 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 Jason Tam as Brandon Stephanie Roth Haberle as Sienna Rowe Eoin O'Shea as Dennis Rowe Clem Cheung as Calvin Uncredited Nicole Lee as Train Passenger