Besides Chaney and Mitchell, the show featured such performers as Boris Karloff, James Dean, Brian Keith, Lee J. Cobb, Eva Gabor, Veronica Lake, Rod Steiger, Bruce Cabot, Franchot Tone, Louis Hector, Gene Lockhart, Walter Abel, Cloris Leachman, Leslie Nielsen, Joanne Woodward and Paul Newman.

This entity, not to be confused with the Science Fiction League, may have been a creation of the producers; author Robert Heinlein was contacted in 1951 by Sturgeon and Abrahams about their plan to "put together a league of s-f authors to write television screenplays for a new proposed TV series, Tomorrow is Yours (the original title of the show).

"[2] A deal was struck with Richard Gordon and George Foley, giving the producers of the show first choice of any of the 2,000 short stories and 13 novels by the various members of the League.

[3] Other early science fiction writers whose work was reflected in the series included Fredric Brown ("The Last Man on Earth" and "Age of Peril"), Philip Wylie ("Blunder"), C. M. Kornbluth ("The Little Black Bag") and Stanley G. Weinbaum ("The Miraculous Serum").

A few years after its cancellation, the radio series X Minus One (a 1955 revival of Dimension X) debuted, again adapting stories published in Galaxy.

Additionally, five of the surviving radio series episodes are now in the public domain in the United States and available for free download at Internet Archive.