Main Characters Dr. J. Allen Hynek 20 main appearances Captain Michael Quinn 20 main appearances General James Harding 20 main appearances Susie Miller 19 main appearances Mimi Hynek 19 main appearances General Hugh Valentine 17 main appearances
Recurring Guest Characters Alex 1 guest appearances Vice Marshall Christopher Thomas 1 guest appearances Darren 1 guest appearances James 1 guest appearances Jean 1 guest appearances Greg 1 guest appearances Dark-Suited Man 1 guest appearances Soldier 1 guest appearances Commander 1 guest appearances Lieutenant 1 guest appearances Admiral 1 guest appearances Turi 1 guest appearances Master Chief Harris 1 guest appearances Master Reed 1 guest appearances Ensign Stanley Burke 1 guest appearances Gerald 1 guest appearances Samara 1 guest appearances Olga 1 guest appearances Commander 1 guest appearances Sonar Technician 1 guest appearances ⇤ « 2 3 4 5 6 7 8 9 10 11 » ⇥