Guest Stars Alejandro Hernandez as Casey Acosta Megan Byrne as Gladys Miller Shiva Kalaiselvan as Leyla Shinwari Christine Chang as Dr. Agnes Kao Anna Suzuki as Sandra Fall Daniel Dae Kim as Dr. Cassian Shin Luke Slattery as PFC Chance Becker Camille Mana as Rose Castillo Almeria Campbell as Anita Barkley Shian Tomlinson as Elisa Barkley Co Starring Stacey Raymond as Paramedic Kerry Whitaker Emma Ramos as Resident Mariana Teresa Patel as Paramedic Harvell Sarafina King as Paramedic Nokic Michael V. Sulsona as Older Vet Chris Walker as Vet #1 Telly Leung as Singer #2 Desiree Rodriguez as Singer #4 Frank Carlo as Painter Anton Obeid as Kevin McGlynn Jennean Farmer as Rhonda Pilar Witherspoon as Woman Hunter Canning as Radiology Tech Raymond Michael McElroy as Singer #1 Casey Erin Clark as Singer #3 Brandon Kazen-Maddox as ASL Interpreter Sue Kim-Molina as Dr. Kwok Rani Varma Peck as Salma Rajput