Guest Stars Kevin Dunn as Dr. Mark Taylor Cress Williams as Cole Guthrie Shiri Appleby as Carla Niven Sara Paxton as Sophie Linara Washington as Rebecca Sayeed Shahidi as Randell Zach Bostrom as Killian Stephen Spinella as Ted Banks Co Starring Angela Relucio as Nurse Risa Park Gabrielle Carteris as Amy Wolowitz Ellia English as Isabel Mendez Lyn Alicia Henderson as Medic #1 Deus Xavier Scott as Medic #3 Stephen Chang as Medic #2 Ursula Burton as Nurse Christina Cannarella as RM Peter James Smith as Dermatologist Carmella Riley as Kim Elaine Mani Lee as Phlebotomist Josh Kirby as Young Man