Guest Stars Stephen Tracey as Tim Davis Evan Parke as Byron Kingsley Yanna McIntosh as Dr. Rhonda Glass Sendhil Ramamurthy as Asher Pyne Carlease Burke as Ruby Co Starring Marium Carvell as Nurse Donna Williams Julie Mainville as ER Nurse Natasha Mumba as Mikayla Glenda MacInnis as Erin Dana Abraham as Darius Tiara Macduff-Gibson as Daughter Karrie Kwong as Floor Nurse Armando Alera as Photographer Mary Kelly as Betty Linda Carter as Madeline Brian Quintero as Dad Theresa Tova as Anna