Melkor
Colonel Poktarl
K'Poraq
Kalnor (as Douglas O. McDonald)
Weapons Officer
Jaghjech
General Chang
Toq
Academy First Officer / Hovak Captain / Starbase 3 (voice) (as John Shull)
K'Mak
Chancellor Gorkon
Civil War Weapons Officer / Freighter Captain 2 / Altair Star Captain / Soorex (voice)
Civil War Marine Commander / Vutwl' Tech Captain (voice)
Academy Engineer / Gorkon Allied Command / Starbase 2 (voice) (as T.C. Carson)
Opening Movie Klingons (voice)
Thok Mak (voice)
Academy Security Officer / Freighter Captain 5 (voice)
Torlek (voice)
Civil War Medical Officer / Wuhey / Federation Commander 1 (voice)
Civil War Engineer / Battlestation Commander (voice)
Academy Marine Commander / Starbase 4 / Wingman 2 / Romulan Captain 2 (voice)
Civil War First Officer / Hopogh Captain / Federation Commander 4 (voice)
Academy Weapons Officer / Change's Communications Officer / Wingman 1 / Povaq Captain (voice)
Academy Helmsman / Ra'wl'a Captain / Freighter Captain 1 / Tlhoy Captain (voice)
Civil War Helm Officer / Tako / Commander Roq (voice)
Civil War Communications Officer / Garlock / Starbase 1 / Tholian Commaner / Tutorial Instructor (voice)
Civil War Science Officer / Mobile Cargo Captain (voice)
Academy Science Officer / Hodlytl Officer / Adel Radsek (voice)
Academy Communications Officer / Federation Commander 2 (voice)
Klingon officer
K'Mpec