- Jean-Marc Lofficier [as R. J. M. Lofficier]; Randy Lofficier [as R. J. M. Lofficier]
- Keith Giffen
- Bob Oksner
- Gene D'Angelo
- Milt Snapinn
- Job Number
- Superman [Superix]; Jimmy Olsen; Astérix (unnamed); Picturix [Panoramix]; Prolifix (villain); Columnix [Obélix]; Prefix [Idéfix]; Chief Flipmybix [Abraracourcix]
- Superman and Jimmy Olsen prevent the theft of an ancient shield. But they are pulled back in time to 253 A.D. where they help the folks in a hidden village escape the Romans.
Script, pencils, and inks credits confirmed from Julius Schwartz's editorial records, provided by DC Comics.
The story is a homage to Goscinny and Uderzo's Asterix.