- Script
- Peter David
- Pencils
- Ryan Sook
- Inks
- Ryan Sook
- Colors
- José Villarrubia
- Letters
- typeset
- Genre
- superhero
- Characters
- Guido
Recap of prior issue and credits. Pin-up is portion of this issue's cover.
- Script
- Peter David
- Pencils
- Renato Arlem; Roy Allen Martinez (flashback art)
- Inks
- Renato Arlem; Roy Allen Martinez (flashback art)
- Colors
- José Villarrubia
- Letters
- Cory Petit of Virtual Calligraphy (as Cory Petit of Virtual Calligraphy)
- Genre
- superhero
- Characters
- X-Factor [Multiple Man [Jamie Madrox]; Wolfsbane [Rahne Sinclair]; Strong Guy [Guido Carosella]; Siryn [Theresa Rourke Cassidy]; M [Monet St. Croix]; Rictor [Julio Esteban Richter]; Layla Miller]]; Quicksilver [Pietro Maximoff]; Daniel Madrox (flashback; Jamie's father); Joan Madrox (flashback; Jamie's mother); Alix Buchanan; Damian Tryp, Sr.; Damian Tryp, Jr.
- Synopsis
- X-Factor must deal with the traitor in their midst.
- Reprints
- Script
- ?
- Pencils
- Ryan Sook
- Inks
- Ryan Sook
- Colors
- José Villarrubia ?
- Letters
- typeset
Peter David answers letters from readers and preview of cover to X-Factor (2005) #12.