David Warner
Chancellor Gorkon
Kurtwood Smith
Federation President
Brock Peters
Admiral Cartwright
John Schuck
Klingon Ambassador
Leon Russom
Chief In Command
Michael Dorn
Klingon Defense Attorney
Grace Lee Whitney
Excelsior Communications Officer
Robert Easton
Klingon Judge
Clifford Shegog
Klingon Officer
William Morgan Sheppard
Klingon Commander
Jeremy Roberts
Excelsior Officer
Michael Bofshever
Excelsior Engineer
Angelo Tiffe
Excelsior Navigator
Boris Lee Krutonog
Helmsman Lojur
Christian Slater
Excelsior Communications Officer
Todd Bryant
Klingon Translator
Jim Boeke
First Klingon General
Carlos Augusto Cestero
Munitions Man
Edward Clements
Young Crewman
Katie Johnston
Martia as a Child
Doug Engalla
Prisoner at Rura Penthe
Matthias Hues
Second Klingon General
David Orange
Sleepy Klingon
Michael Snyder
Crewman Dax
René Auberjonois
Colonel West (uncredited)
Denise Lynne Roberts
Enterprise-A Crewmember (uncredited)