American character actor (1911–2002) who played Dr Tristan Adams, the corrupt director of the Tantalus penal colony, in the Original Series episode Dagger of the Mind.
James Gregory was an American actor, born in 1911, remembered as Senator John Iselin in The Manchurian Candidate (1962), General Ursus in Beneath the Planet of the Apes (1970) and Inspector Luger in the sitcom Barney Miller.
In Dagger of the Mind he played Dr Tristan Adams, a respected reformer of penal treatment who has secretly begun using a device called the neural neutraliser to empty and reprogramme the minds of inmates and staff. Adams turns the machine on Kirk; when the power is restored after Dr Noel's sabotage he is left alone in the chair and dies with his mind wiped blank.
Gregory worked on stage, film and television for some five decades. He died in 2002.