- Script
- ?
- Letters
- typeset
on inside front and back covers
- Script
- ?
- Pencils
- Enrico Bagnoli
- Inks
- Enrico Bagnoli
- Colors
- ?
- Letters
- ?
- Genre
- crime
Letter "M" appears in lower right corner of splash panel, standing for "Martin", which was Bagnoli's pen name.