Main Characters Commander Will Royal 1 main appearances Major Ada Pedersen 1 main appearances Colonel Marks 1 main appearances Major Suzy Chao 1 main appearances Dr. Simon Hill 1 main appearances Dr. Rebecca Gordon 1 main appearances Captain Bobby Trang 1 main appearances Vans 1 main appearances RSM Graham Kelly 1 main appearances Major Hasti Samizay 1 main appearances PJ Talwar Mehra 1 main appearances PJ Terrel Ford 1 main appearances Sgt. Hannah Corda 1 main appearances
Recurring Guest Characters Captain Pam Everwood, RN 1 guest appearances Medtech Larry Alexander 1 guest appearances Medtech Christine Ezrin 1 guest appearances Captain Mary Ann Reith 1 guest appearances LCPL Chuck Braddock 1 guest appearances PFC George Lowen 1 guest appearances Fahran Nawabi 1 guest appearances