- Bill Finger
- Jim Mooney [as Bob Kane] (signed)
- John Giunta
- Robin [Dick Grayson]; Herbert Rork (tennis player, cameo); Waterfront Willie [Mr. Smith]
- Dick Grayson becomes the announcer for Gotham High School's radio station.....but soon discovers that the commercials he giving on the air are intended to aid a group of criminals commit crimes.
The splash page replicates the cover.
Writer credit from textual analysis by Lou Mougin.