Billy Campbell Dr. Alan Farragut Actor Hiroyuki Sanada Dr. Hiroshi Hatake Actor Kyra Zagorsky Dr. Julia Walker Actor Mark Ghanimé Maj. Sergio Balleseros Actor Jordan Hayes Dr. Sarah Jordan Actor Meegwun Fairbrother Daniel Aerov Actor Cat Lemieux Dr. Doreen Boyle Actor Neil Napier Dr. Peter Farragut Actor Alain Goulem Dr. Bryce Guest Star Tamara Brown Dr. Sulemani Guest Star Patrick Baby Dr. Philippe Duchamp Guest Star Vitali Makarov Dr. Dimitri Marin Guest Star Ronald D. Moore Executive Producer Lynda Obst Executive Producer