Main Characters Captain Ed Mercer 36 main appearances Commander Kelly Grayson 36 main appearances Dr. Claire Finn 36 main appearances Lt. Cmdr. Bortus 36 main appearances Lt. Gordon Malloy 36 main appearances Isaac 35 main appearances Lt. Cmdr. John Lamarr 35 main appearances Klyden 20 main appearances Lt. Cmdr. Talla Keyali 20 main appearances Lt. Alara Kitan 15 main appearances Ensign Charly Burke 9 main appearances
Recurring Guest Characters Yaphit 22 guest appearances Lt. Alara Kitan 2 guest appearances Admiral Tom Halsey 13 guest appearances Ty Finn 13 guest appearances Marcus Finn 13 guest appearances Dann 11 guest appearances Topa 11 guest appearances Lieutenant Jenny Turco 10 guest appearances Admiral Ozawa 8 guest appearances Steve Newton 7 guest appearances Computer Voice 7 guest appearances Brosk 7 guest appearances Admiral Perry 6 guest appearances Teleya 5 guest appearances Cassius 5 guest appearances Kaylon Primary 5 guest appearances Nurse Hopkins 5 guest appearances Heveena 4 guest appearances Nurse Henry Park 4 guest appearances Fleet Admiral Tucker 3 guest appearances ⇤ « 1 2 3 4 5 6 7 8 9 10 » ⇥