(written from a Production point of view)
At 7 feet 4 inches tall, Bloom truly was a behemoth of a man. He made his feature acting debut in the 1971 B-horror movie, Dracula Vs. Frankenstein, becoming the largest actor to play the legendary role of Frankenstein's monster. He followed this with appearances in several more B-movie horror flicks. His first true venture from this genre was the 1975 comedy Up Your Alley, co-starring Star Trek: The Next Generation and Voyager guest actor Frank Corsentino. This was followed in 1979, however, by another horror feature, The Dark, in which he played the title role (and co-starred with Biff Elliot).
Yet another horror movie credit was 1985's The Hills Have Eyes II, in which his character ("The Reaper") was voiced by Deep Space Nine and Voyager guest star Nicholas Worth. The film also starred Michael Berryman and Penny Johnson. His other film credits include Bachelor Party (1984, with Coleen Maloney, Arlee Reed, Ben Slack, Gerard Prendergast, Jim Hudson, and Brett Baxter Clark), Runaway Train (1985, with Tommy "Tiny" Lister, Jr.), Harry and the Hendersons (1987), and The Great Outdoors (1988).
Bloom also had a role in the 1984 made-for-television movie The Cartier Affair, as did fellow Trek alumni Joan Collins, Ed Lauter, and Charles Napier. Two years later, he co-starred with Scott Bakula (in his RV acting debut) and Ellen Bry in the TV movie I-Man, directed by Corey Allen. Bloom also appeared in a 1984 episode of Alice with Don Keefer and series regular Vic Tayback and was also a regular on the series Paradise from 1988 through 1990, co-starring Michael Ensign.
John Bloom died of heart failure in his birth city of Los Angeles, California in 1999 at the age of 54. His last on-screen performance was in the 1992 film Frozen Assets, alongside fellow Trek performers Corbin Bernsen and Gerrit Graham.