The on-sale date is from the publication date recorded in the Catalog of Copyright Entries, Part 2, Periodicals, 1941, New Series, Vol. 36, No. 4.
| Script: | ? |
| Pencils: | Reed Crandall (signed as E. Lectron) |
| Inks: | Reed Crandall (signed as E. Lectron) |
| Colors: | ? |
| Letters: | ? |
in O Faísca (Sociedade Editora A.L.M.A., Ltd.ª, 1943 series) #1 (6 de Março de 1943), #2 (13 de Março de 1943), #3 (27 de Março de 1943), #4 (3 de Abril de 1943), #5 (10 de Abril de 1943), #6 (17 de Abril de 1943)
in Special Edition Series (DynaPubs Enterprises, 1974 series) #2 (1974) [black and white]| Script: | Paul Gustavson (signed) (sourced) |
| Pencils: | Paul Gustavson (signed) (sourced) |
| Inks: | Paul Gustavson (signed) (sourced) |
| Colors: | ? |
| Letters: | Paul Gustavson (signed) (sourced) |
| Script: | Robert Turner (signed) |
| Pencils: | Jim Mooney (signed) |
| Inks: | Jim Mooney (signed) |
| Colors: | ? |
| Letters: | ? |
| Script: | Art Pinajian (signed as Art Gordon) |
| Pencils: | Art Pinajian (signed as Art Gordon) |
| Inks: | Art Pinajian (signed as Art Gordon) |
| Colors: | ? |
| Letters: | ? |
| Script: | Jack Cole (signed) |
| Pencils: | Jack Cole (signed) |
| Inks: | Jack Cole (signed) |
| Colors: | ? |
| Letters: | ? |
| Script: | Vern Henkel (signed as Vern) |
| Pencils: | Vern Henkel (signed as Vern) |
| Inks: | Vern Henkel (signed as Vern) |
| Colors: | ? |
| Letters: | ? |
| Script: | ? |
| Pencils: | Jack Cole (signed as Ralph Johns) |
| Inks: | Jack Cole (signed as Ralph Johns) |
| Colors: | ? |
| Letters: | ? |
| Script: | ? |
| Pencils: | Alex Blum (signed as S. M. Regi) |
| Inks: | Alex Blum (signed as S. M. Regi) |
| Colors: | ? |
| Letters: | ? |
Williams is credited on drawing this feature.
Will Eisner created the Espionage feature, and Will Erwin was a pen name used by Will Eisner (Erwin was Eisner's middle name), but it also became a house by-line after Eisner's tenure after 1940. Dick French wrote the feature in 1941, followed by Toni Blum (1942) and Otto Binder (1942-43).
| Script: | George Brenner ? (signed as Wayne Reid) |
| Pencils: | George Brenner (signed as Wayne Reid) |
| Inks: | George Brenner (signed as Wayne Reid) |
| Colors: | ? |
| Letters: | ? |