Theodore Krulik interviewed the late Roger Zelazny extensively to write his literary biography Roger Zelazny, published in 1986 by the Frederick Ungar Publishing Company. Through his continued friendship with Roger, Krulik wrote The Complete Amber Sourcebook, a concordance of the ten Amber novels, published by Roger's long-time publisher, Avon Books, in 1996. Currently, Krulik is writing Roger Zelazny: In His Own Words, a collection of anecdotes told by Zelazny in his exclusive interviews with Krulik.

In March, 1989, Krulik interviewed Roger at Lunacon in Tarrytown, New York in front of a packed audience. It was during that same convention that the management had the hotel evacuated because of a fire alarm. Krulik met Roger running the wrong way during the evacuation, and Roger explained that his literary agent sent him back to get the only copy of his latest Amber manuscript. True story!

As a member of the Science Fiction Research Association, he had edited an SF Films column for the SFRA newsletter during the 1980s and 90s. A film expert, Krulik has been on panels at Philcon and Balticon discussing the movies of M. Night Shymalan, James Cameron, George Lucas' Star Wars saga, Mary Shelley's Frankenstein and film depictions, and, of course, the life and works of Roger Zelazny.

In the mundane world, Krulik is a retired high school English teacher residing in Queens, New York.