Trivia

Provided the voice of The Keeper (played on-screen by Meg Wyllie) in "The Cage", the first pilot episode for Star Trek (1966). "The Cage" was unusable as a main series episode, so elements were incorporated as flashbacks in the two-part episode "The Menagerie". Malachi Throne was cast in this episode, this time to appear on-screen as Commodore Mendez, so consequently The Keeper had to be re-voiced by someone else.

Narrated the teaser trailer for Star Wars: Episode IV - A New Hope (1977).

Served with the United States Army during the Korean War, then attended Brooklyn College and Long Island University.

Had two sons by his first marriage: Zachary Throne and Joshua Throne.

Both he and Edward Binns played Alexander Mundy's government boss on It Takes a Thief (1968) and both actors debuted on the same episode of Brenner (1959).

One of only 31 actors and actresses to have worked on both the original Star Trek (up to and including Star Trek VI: The Undiscovered Country (1991)) and then in one of the spin-offs, Throne also appeared in four different productions with Leonard Nimoy: Star Trek (1966), Mission: Impossible (1966), Assault on the Wayne (1971) and Star Trek: The Next Generation (1987).

Although his character on Babylon 5 (1993) was simply "Centauri Prime Minister" when he appeared, the character is later referred to as "Prime Minister Malachi", lending Throne's real name to the fictional character. Turhan Bey appeared opposite as the Centauri emperor who was later referred to as "Emperor Turhan".

Along with Michael Ansara, Kevin Hagen, Torin Thatcher, John Crawford, Bart La Rue and Jerry Catron, he is one of only seven actors to appear in all four of Irwin Allen's science fiction series: Voyage to the Bottom of the Sea (1964), Lost in Space (1965), The Time Tunnel (1966) and Land of the Giants (1968).

He was a lifelong liberal Democrat.

Upon his death, he was cremated and his ashes returned to his wife.