Matt Czuchry Dr. Conrad Hawkins Actor Emily VanCamp Nicolette Nevin Actor Manish Dayal Dr. Devon Pravesh Actor Shaunette Renée Wilson Dr. Mina Okafor Actor Bruce Greenwood Dr. Randolph Bell Actor Moran Atias Renata Morali Actor Merrin Dungey Claire Thorpe Actor Melina Kanakaredes Dr. Lane Hunter Actor Warren Christie Dr. Jude Silva Guest Star Tasie Lawrence Priya Nair Guest Star Caroline Arapoglou Noni Turner Guest Star Damon Dayoub Bobby Singer Guest Star Stephen Henderson Darryl Phillips Guest Star Vernee Watson Mary Phillips Guest Star Jocko Sims Dr. Ben Wilmot Guest Star Matt Walton Dr. Spalding Massero Guest Star Antoine Fuqua Executive Producer Amy Holden Jones Executive Producer David Boorstein Executive Producer Oliver Obst Executive Producer Phillip Noyce Executive Producer Todd Harthan Executive Producer Rob Corn Executive Producer