Allen was born in New York City, son of Billy (Carroll Abler) and Isabelle Allen (nee Donohue), a husband and wife vaudeville comedy team. He was raised on the South Side of Chicago largely by his mother's Irish Catholic family. Milton Berle called Allen's mother "the funniest woman in vaudeville". Allen's first radio job was on station KOY in Phoenix, Arizona, after he left Arizona State Teachers College (now Arizona State University) in Tempe while still a sophomore.

Allen, a freethinker and humanist, became an outspoken critic of organized religion and an active member of the scientific skepticism movement. He worked to promote critical thinking with such humanist and skeptical organizations as the Council for Media Integrity, a group that debunked pseudoscientific claims, and the California-based group The Skeptics Society. He wrote many pieces for their publication, Skeptic, on such topics as the Church of Scientology, genius, and the passing of science fiction giant Isaac Asimov.  Working with Paul Kurtz, publisher of Prometheus Books, Allen published 15 books, including Dumbth: The Lost Art of Thinking with 101 Ways to Reason Better and Improve Your Mind, which was reissued in 1998. He produced Gullible's Travels, an audiotape with original music and script that was read and sung by him and his wife "in order to introduce youngsters to the brain and its proper use." Wishing to counter the influence of the American religious right, Allen wrote both a 1990 critique of the Bible (Steve Allen on the Bible, Religion and Morality) as well as a sequel. A sample passage from the book that illustrated his view of the Judeo-Christian God reads:  The proposition that the entire human race -- consisting of enormous hordes of humanity -- would be placed seriously in danger of a fiery eternity characterized by unspeakable torments purely because a man disobeyed a deity by eating a piece of fruit offered him by his wife is inherently incredible.  In 2011 Allen was selected for inclusion in the Committee for Skeptical Inquiry's Pantheon of Skeptics.

Answer the following question by taking a quote from the article: Did he write any other books?
Allen wrote both a 1990 critique of the Bible (Steve Allen on the Bible, Religion and Morality) as well as a sequel.