- Script
- Robert Bernstein
- Pencils
- George Papp
- Inks
- George Papp
- Colors
- ?
- Letters
- Joe Letterese
- Genre
- superhero
- Characters
- Superboy [also appears as Clark Kent]; Tom Tanner (Clark Kent look-alike); Lana Lang; Sun Boy (impostor); Legion of Super-Heroes [Cosmic Boy; Saturn Girl; Lightning Lad; Phantom Girl; Brainiac 5; Chameleon Boy]; Chief Parker; Superboy robots; Ma Kent; Lana Lang
- Synopsis
- A fake Sun Boy comes to Smallville asking Superboy's help in assembling a super-weapon. Meanwhile Tom Tanner, an escapee from reform school, takes over Clark Kent's identity.
- Reprints
- Keywords
- kryptonite
Sun Boy previously introduced in Action Comics #276 (September 1960). Original story is partially rewritten from "The Two Clark Kents" in Adventure Comics #191 (August 1953).
- Script
- Mort Weisinger
- Pencils
- Curt Swan
- Inks
- Stan Kaye
- Colors
- ?
- Letters
- typeset
Letters from Warren Albrecht, Jack Grobmyer, Tom Turner, Glenn Summers, Peggy Mitchell, Lance Gatthaffer, Mitchell Zimmer, Neil Powell, Jeffrey Ray, and Ronald Glenn; first "Bits of Bizarro Business" feature with snippets of other readers' letters.