[2] He worked on novels and novelizations (and other works) being published under various pseudonyms such as: Kenneth Robeson, Con Steffanson, Chad Calhoun, R. T. Edwards, Ian R. Jamieson, Josephine Kains, Jillian Kearny, Howard Lee, Zeke Masters, Frank S. Shawn, and Joseph Silva.

[4][5][6] He attended the University of California, Berkeley, and worked there as an advertising copywriter in San Francisco while he started to write fiction.

Goulart's fiction is characterized by several themes, including technology gone wrong (usually through incompetence rather than malice) and protagonists with superhuman powers.

His crime and science fiction works include tales about robots and historical Hollywood figures, such as Groucho Marx.

In the 1970s, he wrote several novels based on Lee Falk's The Phantom for Avon Books, using the pseudonym "Frank Shawn" (a play on his wife and son's names).