Guest Stars Melinda McGraw as Dr. Greta Pryor Barbara Eve Harris as Lydia Doyle Josette Canilao as Naomi Toby Hemingway as Gabe Steve Harris as Beaumont Shannon Chan-Kent as Claire Omid Abtahi as Jake Co Starring Andres Joseph as Dr. Fleisher Tracy Waterhouse as Nurse Lindsay Julien Hyacinthe as Security Guard Andy Nez as Frank Patricia Cullen as Lisa Jesse Reid as Tech Consultant Bill Marchant as Gerry Anthony Harrison as Senator Howe Nicole Anthony as Medical Officer Anthony Shudra as Young Marshall