Guest Stars Angela Relucio as Nurse Risa Park Gabrielle Carteris as Amy Wolowitz Kevin Dunn as Dr. Mark Taylor Ellia English as Isabel Mendez Cress Williams as Cole Guthrie Shiri Appleby as Carla Niven Steven Shaw as Henry Rick Garcia as News Anchor Michael Trucco as Tom Moreno Benito Martinez as Steve Jasso Christopher Meyer as James Luke Donaldson as Ethan Watney Sal Lopez as Drunk Man Melissa Bickerton as X Ray Tech J. Mallory McCree as Jamal Casey Printers as Scott