| Unofficial Action Comics Index |
Credits:
| Story | Robert Bernstein |
| Art | John Forte |
| Editing | Mort Weisinger |
Feature Character(s):
- Superman (see Comments)
Supporting Character(s):
- Lana Lang
- Lois Lane
- Perry White
Other Character(s):
- Hercules
- Samson
- citizens of Metropolis
Location(s):
- Earth
- Ancient Greece
- Metropolis
Comment(s):
- This is an Imaginary Story.
Story Reprinted in:
- Showcase Presents Superman #3 (April 2007)
Credits:
| Story | Jerry Siegel |
| Art | Jim Mooney |
| Editing | Mort Weisinger |
Feature Character(s):
- Supergirl (in between the previous issue and the next issue)
Guest Star(s):
- Streaky (last in issue #277/2 next in Adventure Comics #293; also in flashback)
- Superman (in between the previous issue and the next issue; also in flashbacks)
Supporting Character(s):
- Fred Danvers (first appearance; husband of Edna; adopts Linda Lee; next in issue #282/2)
- Edna Danvers (first appearance; wife of Fred; adopts Linda Lee)
Villain(s):
- Lesla-Lar (first appearance; also in flashback; an accomplished scientist in Kandor jealous of the potential fame Supergirl will receive when her existence is made public to Earth; secretly switches places with Supergirl)
- Lex Luthor (last in Superman's Girl Friend Lois Lane #28/3)
- a scientist convicted of illegally working on a "Z-Bomb" experiment (first appearance; sentenced to 20 years in the Phantom Zone)
Other Character(s):
- children at the Midvale Orphanage
- Miss Hart
- the warden of Metropolis Prison
- Kandorians
Cameo Appearance(s):
- Brainiac (picture)
- Koko (picture)
- Jor-El (statue)
- Lori Lemaris (on a view screen, in flashback)
- Jerro (on a view screen, in flashback)
Location(s):
- Space Sector 2814
- Earth
- Fortress of Solitude
- The Bottle City of Kandor
- Hall of Heroes
- Hall of Villains
- Hall of Sleepers
- The Bottle City of Kandor
- Metropolis
- Midvale
- Fortress of Solitude
- Earth
- Phantom Zone
Comment(s):
- Story continued from the previous issue and continues in the next issue.
Story Reprinted in:
- Action Comics #360/2 (March-April 1968)
- Supergirl Archives #2 ([December] 2003)
- Showcase Presents: Supergirl #1 ([November] 2007)
- Supergirl: The Silver Age Omnibus #1 ([June] 2016)
- Supergirl: The Silver Age #1 (2017)