Among those in attendance were Forrest J Ackerman, Bloch, Leslie A. Croutch, E. Everett Evans, James "Rusty" Hevelin, David H. Keller, Judith Merril, Sam Moskowitz, Chad Oliver, George O. Smith, Will Sykora, Tucker, and Donald Wollheim.
Merril began hosting quarterly gatherings of authors in a loose group called "Toronto Hydra", a tradition she had brought from the New York SF community.
De Lint, Huff and Guy Gavriel Kay became notable for using Canadian settings in science fiction and fantasy, and William Gibson pioneered the cyberpunk subgenre with his novel Neuromancer.
By the 1990s, Canadian science fiction was well established and internationally recognized; mainstream authors such as Margaret Atwood began including SF in their repertoire.
[6] Some of the most famous Canadian writers of science fiction include Margaret Atwood, John Clute, Charles de Lint, Cory Doctorow, James Alan Gardner, William Gibson, Ed Greenwood, Tanya Huff, H. L. Gold, Nalo Hopkinson, Guy Gavriel Kay, Judith Merril, Spider Robinson, Robert J. Sawyer, Karl Schroeder, Judith and Garfield Reeves-Stevens, A. E. van Vogt, and Robert Charles Wilson.
Some of the most popular science fiction movies and TV shows seen around the world are made primarily or entirely in Vancouver & Toronto which are both often called Hollywood North, or elsewhere in Canada.