A Starfleet officer in the conspiracy to sabotage the Khitomer peace talks, who attempts to assassinate the Federation President in Star Trek VI.
Colonel West is a Starfleet officer who belongs to the secret conspiracy of Federation, Klingon and Romulan officers opposed to peace between the Federation and the Klingon Empire in Star Trek VI: The Undiscovered Country.
At the Khitomer conference, West is disguised as a Klingon and attempts to assassinate the Federation President. Kirk and his crew arrive in time, and West is shot before he can fire. An extended version of the film includes a scene in which he presents a plan to rescue Kirk and McCoy. He was played by René Auberjonois.