X-Factor Reading Order: From the Original Five to Krakoa
Every era of X-Factor, from the original five X-Men to Peter David's detective agency.
By Web Admin
X-Factor is one of the most quietly rewarding corners of the X-Men line, and also one of the most confusing to shop for, because three completely different teams have carried the name. There is the original squad of reunited founding X-Men, the wisecracking government “X-Factor” of the 1990s, and the noir detective agency that became the definitive version. If you have ever stared at a shelf of X-Factor trades wondering how they connect, this guide sorts it out.
Below is an X-Factor reading order that treats each era as its own thing while showing how they link. We will tell you where a new reader should actually start (hint: it is not issue #1), walk through the classic runs, and land on the modern Krakoa-era relaunch. You do not need to be an X-Men expert to enjoy any of it, though a little mutant context helps.
Three teams, one name: what X-Factor actually is
The X-Factor name has covered three distinct teams. The original X-Factor (1986) reunited the five founding X-Men. The 1991 relaunch turned it into a government-sponsored team of second-tier mutants. And Peter David’s 2005 X-Factor reinvented it as a hardboiled detective agency, X-Factor Investigations. Knowing which team a book stars is the key to reading in the right order.
Because so much of this ties back to the wider mutant saga, our X-Men reading order and the Marvel hub make good companions. New to Marvel entirely? Start with our Marvel reading order for beginners first.
Start here: X-Factor by Peter David (2005)
Do not start at the chronological beginning. Start with the best and most accessible version: Peter David’s X-Factor (2005), which follows a scrappy team of mutant private investigators led by the reality-warping detective Jamie Madrox, the Multiple Man. The first volume, The Longest Night, is a noir mystery that welcomes new readers and sets up a brilliant, funny, deeply human ensemble.
David writes some of the sharpest character work in superhero comics here, and the detective framing keeps each arc grounded. Read this run first, and if you love it, the rest of the franchise becomes a rewarding set of prequels. It is collected in trades and in the X-Factor by Peter David omnibus line.
Stage 1: Madrox (2004), the direct lead-in
The 2005 series grew directly out of Madrox (2004), a five-issue noir miniseries by Peter David and Pablo Raimondi that reinvented Jamie Madrox as a film-noir private eye. It is the true starting point for the detective era and establishes the tone, the supporting cast, and Madrox’s dry, self-doubting voice.
Read Madrox either just before or just after The Longest Night; it works both ways. It is collected as Madrox: Multiple Choice and is a short, self-contained gem that makes the perfect on-ramp to David’s longer run.
Stage 2: The original X-Factor (1986)
Now go back to the beginning. The first X-Factor (1986) reunited the five original X-Men, Cyclops, Jean Grey, Beast, Iceman, and Angel, as a team posing as mutant hunters while secretly protecting mutants. Written early on by Bob Layton and then defined by Louise Simonson with Walter Simonson on art, it is a major run that turned Angel into Archangel and cemented Apocalypse as an A-list villain.
It is a product of its late-1980s era, but it is historically essential: this is where several enduring pieces of X-lore were born. It is collected in X-Factor Epic Collection and Visionaries volumes. For the founders’ wider story, see our best X-Men comics guide.
Stage 3: The government X-Factor (Peter David, 1991)
When the original five rejoined the X-Men, the X-Factor title relaunched in 1991 as a government-sponsored team of underdogs: Havok, Polaris, Multiple Man, Strong Guy, Wolfsbane, and Quicksilver. Peter David’s first run on the book (starting with issue #71) is a beloved blend of sharp humor and genuine pathos, famous for the standout issue #87, in which the team undergoes psychiatric evaluation with Doc Samson.
This run is the seed of everything David later did with the detective series, and it introduces the character dynamics he would return to. It is collected in X-Factor Visionaries: Peter David volumes. Several of these characters also anchor our New Mutants reading order world.
Stage 4: The rest of the Peter David detective run
Back to the modern era. After The Longest Night, keep going through David’s long 2005-2013 X-Factor run, which weaves through major X-events like House of M, Messiah Complex, and Second Coming while staying focused on its core cast. The later arcs, collected under titles like The Invisible Woman Has Vanished and the Hell on Earth War saga, deepen the team’s relationships and end the story on a strong emotional note.
This is one of the most consistent long runs in modern X-history, and reading it in full is the biggest reward this franchise offers. All of it is collected in trades and omnibuses. One of its breakout stars, Cable’s world, connects to our Cable reading order for readers who want to branch out.
Stage 5: All-New X-Factor (2014)
Peter David returned once more for All-New X-Factor (2014), reimagining the team as a corporate-sponsored super-group featuring Polaris, Quicksilver, Gambit, and others. It is a lighter, satirical take on heroes as brand ambassadors, and while it ran only 20 issues, it is a fun coda to David’s long association with the franchise.
It is collected in three trade paperbacks and reads as a self-contained epilogue. Come to it after the main detective run, when you already know how well David writes this cast.
Stage 6: X-Factor in the Krakoa era (2020)
The most recent relaunch, X-Factor (2020) by Leah Williams and David Baldeon, sets the team within the mutant nation of Krakoa, where they investigate the deaths of mutants to determine whether the island’s resurrection protocols should bring them back. It is a clever, character-driven premise that ties the classic “X-Factor investigates” idea directly into the Krakoa-era status quo.
It is collected in trade paperbacks and works as a modern jumping-on point if you are already reading the Krakoa books. For that wider context, our X-Men reading order covers the Krakoa age in full.
Reading order at a glance
| Step | Title / era | Creators | Best for |
|---|---|---|---|
| 1 | X-Factor: The Longest Night (2005) | Peter David & Ryan Sook | The best start |
| 2 | Madrox: Multiple Choice (2004) | David & Raimondi | The direct lead-in |
| 3 | X-Factor, original five (1986) | L. & W. Simonson | The historical roots |
| 4 | X-Factor, government team (1991) | Peter David | The classic David run |
| 5 | All-New X-Factor (2014) | David & Di Giandomenico | A satirical coda |
| 6 | X-Factor, Krakoa era (2020) | Williams & Baldeon | The modern relaunch |
Read steps 1 and 2 first no matter what; they are the most accessible and the highest quality. The rest can be read in publication order for the full history.
Where to buy and how to collect
Peter David’s 2005 run is the one to prioritize, and it is collected in affordable trades as well as the X-Factor by Peter David omnibuses for readers who want it all in one place. Madrox: Multiple Choice is a cheap single volume and the ideal first buy. The older Simonson-era material lives in Epic Collection volumes. Marvel’s digital service carries nearly all of it for sampling.
AmazonCheck price on AmazonWhere to go next
X-Factor is one thread in the larger mutant tapestry, so the natural next step is our X-Men reading order, followed by the standout titles in our best X-Men comics guide. For adjacent teams and characters, try our New Mutants reading order and Cable reading order. For another street-level Marvel lead, see our Spider-Woman reading order.
Frequently asked questions
Where should a beginner start with X-Factor?
Start with Peter David’s X-Factor (2005), beginning with The Longest Night, or with its lead-in miniseries Madrox: Multiple Choice (2004). Both are accessible detective stories that require no prior X-Men knowledge and represent the franchise at its best.
Why are there three different X-Factor teams?
Marvel reused the name across eras. The 1986 series reunited the five founding X-Men, the 1991 relaunch was a government team of underdogs, and Peter David’s 2005 series reinvented X-Factor as a mutant detective agency. Each is a distinct team with a different tone.
Do I need to read the X-Men first?
No. The Peter David detective runs stand on their own, though a little X-Men context helps with the crossover tie-ins. If you want that background, our X-Men reading order is the place to build it.
Which X-Factor run is the best?
Peter David’s 2005-2013 detective run is widely considered the definitive version, praised for its humor, mystery plots, and deep character work. If you read only one X-Factor era, make it that one, starting with The Longest Night.
Keep exploring with our X-Men reading order or the wider Marvel hub.
