All month-long we'll be featuring top five lists about either the Avengers or the X-Men. Here is an archive of all the past top five lists!

Today we'll take a look at the top five guest appearances by non-X-Men characters in the pages of X-Men (no mini-series, just X-Men proper). Now do note that this doesn't count company-wide crossovers or stuff like appearances by villains the X-Men don't normally face (like Doctor Doom or Loki). Just guest appearances by non-X-Men characters in the pages of X-Men.

Enjoy!

HONORABLE MENTIONS

Right before Avengers vs. X-Men, in Uncanny X-Men #9-10, the Avengers teamed up with the X-Men to stop a whole host of alien bad guys who were released from SWORD prison by another bad guy...



Nice Pacheco art but the Avengers are barely in the two issues.

In the FIRST X-Men #9, the Avengers also meet up with the X-Men and it is kind of amusing, really...



I like the Fantastic Four team-up in X-Men Annual #5...



The Israeli mutant superhero Sabra had little to no X-Men interaction for years, which is odd for a mutant hero. She got involved in the compelling Zero Tolerance storyline in X-Men #66-69...



A number of Marvel writers had Power Pack make cameos in their books and few were quite as adorable as their appearance in Uncanny X-Men #195...



Nick Fury was used well in Uncanny X-Men #274-275...



They really should have had even MORE guest stars while they had Jim Lee. It is always interesting to see Jim Lee's take on a given character.

5. Spider-Man (Uncanny X-Men #346)



Spider-Man's interactions with Marrow in this issue by Scott Lobdell, Joe Madureira and Tim Townsend were so cool that they ended up even giving them their own one-shot later on! I think Spider-Man might even have had sex with her (this was during one of the many times the Spider-office tried to write Mary Jane out of the comic. At this particular point in time, she was believed to be dead).

4. Energizer (Uncanny X-Men #205)



I know the idea is that Katie Power is a kid so of course she'd pick a dumb name, but man, Energizer is such a bad name. Anyhow, this is the classic issue where Katie and Wolverine are alone in New York City during a snowstorm being hunted by the Reavers. Classic issue by Claremont and Barry Windsor Smith.

3. Doctor Strange (X-Men Annual #4)



John Romita Jr.'s first X-Men story. He was inked by Bob Mcleod on this annual written by Chris Claremont. This annual explored Nightcrawler's origins (including a probably unnecessarily complicated magic background) and Doctor Strange was used quite well. I guess it was worth it to give Nightcrawler a magic background if it gave an excuse for a cool Dr. Strange cameo!

2. J. Jonah Jameson (Uncanny X-Men #346)



This was likely the best Jameson had been written in years and it wasn't even in a Spider-Man title!

1. Captain America (Uncanny X-Men #268)



Remember what I said about just having Jim Lee draw other characters? This is why you give him the opportunity - he can come up with iconic shots like this one from one of the all-time great team-up issues in X-Men history.

That's the list! Agree? Disagree? Let me know!