29 Wolf's Dawn Version 2 » by andrewjameswilliams Rewrite of Wolf's Dawn. When Xander Harris is bitten by a werewolf his destiny, and the fate of the Scoobies, is changed forever.
Buffy: The Vampire Slayer & Teen Wolf, T, English, Supernatural & Adventure, chapters: 5, words: 23k+, favs: 133, follows: 148, updated: 3/4 published: 12/10/2017, Xander H., Buffy S., R. Giles, Willow R.
387 Master Harris » by thenextcujo Xander goes as a more famous soldier for Halloween - Chapter 21 uploaded
Buffy: The Vampire Slayer & Halo, T, English, Adventure & Sci-Fi, chapters: 21, words: 87k+, favs: 630, follows: 721, updated: 11/9/2021 published: 11/11/2004, Xander H., Cortana
188 A Legacy of Chaos: A Ship of Line Story » by andrewjameswilliams In the aftermath of Ethan Rayne's spell Xander Harris finds himself transformed into a capsuleer and finds himself drawn into the battle between Stargate Command and the Goa'uld Empire. *Chapter one edited.*
Buffy: The Vampire Slayer & Stargate: SG-1, T, English, Sci-Fi & Adventure, chapters: 11, words: 64k+, favs: 673, follows: 826, updated: 10/15/2021 published: 3/20/2020
146 Master Xander » by AlbertG The fight between Buffy and her friends against Glory was horrific. Buffy won and the portal was closed. But the damage was done. There were fractures everywhere. Years later Alexander Harris has to clean up one such mess before true evil enters this virgin world.
Buffy: The Vampire Slayer & Harry Potter, T, English, Adventure & Supernatural, chapters: 25, words: 84k+, favs: 324, follows: 437, updated: 9/28/2021 published: 3/13/2019
75 Is Worse Than the Disease » by Jacob M. Bosch In this sequel to The Cure for Love Xander is dating Angel who's still convinced he's in love with Xander. Slash
Buffy: The Vampire Slayer, M, English, Romance, chapters: 3, words: 13k+, favs: 60, follows: 69, updated: 12/19/2020 published: 5/9/2002, Xander H., Angel
50 If One is Good Then Two Must Be » by Shadow Master (BtVS/Elements of The Flash 2014/Marvel Earth-10005/Marvel Earth-120703/Elements of Marvel Earth-616) When you've been fighting long enough you start to think that it'll go on forever. But to everything there's an end...and a beginning.
Buffy: The Vampire Slayer & Marvel, M, English, Adventure & Sci-Fi, chapters: 4, words: 54k+, favs: 289, follows: 342, updated: 10/23/2019 published: 2/11/2018, Xander H.
1k+ Invincible » by kathryn518 The night in the graveyard, produces a very different result as Harry discovers things he didn't know about his heritage. Before he only had a castle, now he has a whole wide world to get himself in trouble. At least he has his responsible godfather along for the ride. That should help... right? Or not.
DC Superheroes & Harry Potter, M, English, chapters: 4, words: 110k+, favs: 6k+, follows: 8k+, updated: 4/20/2019 published: 2/8/2016, Harry P., Sirius B.
1k+Walking in the shadows » by dogbertcarroll Xander's road trip takes him much farther then he ever dreamed possible.
Buffy: The Vampire Slayer, M, English, Adventure & Supernatural, chapters: 33, words: 87k+, favs: 2k+, follows: 2k+, updated: 12/25/2018 published: 9/9/2007, Xander H.
389Proof of Existence » by Chunk127 Xander adds a couple touch ups to his Soldier costume and makes a whole new problem.
Buffy: The Vampire Slayer, T, English, Supernatural & Adventure, chapters: 24, words: 124k+, favs: 1k+, follows: 1k+, updated: 8/20/2018 published: 5/16/2013, Xander H., Cordelia C., Faith L., Wesley W.
225 You're a wizard, Harris » by stephenopolos YAHF reversed, Xander goes from halloween to waking up in the cupboard under the stairs. Increasingly AU the longer he stays on that side.
Buffy: The Vampire Slayer & Harry Potter, T, English, Humor & Fantasy, chapters: 7, words: 25k+, favs: 980, follows: 1k+, updated: 12/1/2017 published: 11/15/2014, Xander H.
223 Xander's Green Eyed Obsession » by Grayswandir Xander's post-graduate cross-country adventure may not have led him far from Sunnydale, but it did bring a few changes. An interest in melee combat and . . . a British boyfriend? Slash, Harry/Xander, Anya!bashing, HP Book-canon
Buffy: The Vampire Slayer & Harry Potter, T, English, Romance & Humor, chapters: 16, words: 40k+, favs: 851, follows: 1k+, updated: 8/22/2017 published: 4/26/2012, [Xander H., Harry P.]
91 Wolf's Dawn » by andrewjameswilliams When Xander Harris is bitten by a werewolf his destiny, and the fate of the Scoobies, is changed forever. *Discontinued rewrite in progress*
Buffy: The Vampire Slayer & Teen Wolf, T, English, Supernatural & Adventure, chapters: 8, words: 34k+, favs: 240, follows: 256, updated: 7/9/2017 published: 10/4/2015, Xander H., Buffy S., R. Giles, Willow R.
272 Play to Your Strengths » by Lady FoxFire Before the first task in the Tri-Wizard Tournament, Moody told Harry to 'play to your strengths' and Harry took those words to heart. Of course the Wizard World was less than pleased with the new Harry.
Harry Potter, K+, English, Drama, chapters: 5, words: 10k+, favs: 2k+, follows: 1k+, 4/22/2017, Harry P.
99 Double Trouble » by kirallie Up for adoption AU. Sam had a twin brother who was lost in the fire. Jessica Harris had a very difficult birth. What do these two events have in common?
Buffy: The Vampire Slayer & Supernatural, T, English, Family & Supernatural, chapters: 10, words: 22k+, favs: 293, follows: 381, updated: 1/13/2017 published: 2/19/2010, Xander H., Sam W., Dean W., John W.
122 Ask The Trees » by She Who Cannot Be Turned Brains, braids and a mischievous streak large enough to get him run out of Britain. Who is this 'green boy? And what happened to Harry Potter? BtVS xover. Slash(ish).
Buffy: The Vampire Slayer & Harry Potter, T, English, Humor & Supernatural, chapters: 3, words: 18k+, favs: 625, follows: 792, updated: 10/23/2016 published: 10/8/2014, Xander H., Spike, Harry P., OC
3k+ Ah, Screw It! » by mjimeyg Harry goes to sleep after the final battle... but he wakes up at his first Welcoming Feast under the Sorting Hat. Harry has been thrown back in time into his eleven-year-old body. If he's going to have suffer through this again, he's going to do all he can to make sure he enjoys himself.
Stargate: SG-1 & Harry Potter, M, English, Humor & Adventure, chapters: 37, words: 229k+, favs: 9k+, follows: 6k+, updated: 9/15/2016 published: 8/29/2016
580 Full Circle » by mjimeyg Harry, Neville, Clark and the rest have each known Xander Harris as their father, grandfather, father-in-law, etc. Now they want to try and do for him what he did for them, by saving him from a bad home and a life fraught with death and despair. (Final instalment of the Harry Potter: Aspect of Death)
Buffy: The Vampire Slayer & Harry Potter, M, English, Humor & Supernatural, chapters: 23, words: 120k+, favs: 1k+, follows: 847, updated: 7/9/2016 published: 6/28/2016, Xander H., Buffy S., Harry P., Neville L.
14Unity (ReWrite) » by Joshua The Evil Guy After Graduation, Xander goes on a Road Trip. He runs into another group of "heroes" and discovers-outside the influence of the Hellmouth-that he has a special ability on par with being the Slayer, or a super witch. He can Fuse-temporarily-with other people to create a whole new, more powerful hero that is an amalgam of everything they were and are. Like Access from Amalgam Comics.
Buffy X-overs, T, English, Supernatural & Adventure, chapters: 3, words: 21k+, favs: 61, follows: 65, updated: 7/7/2016 published: 7/7/2015
589 Hero System » by dogbertcarroll Load Game Avatar - Xander Harris... Begin story in 5, 4, 3, 2, 1... Story starts.
Buffy: The Vampire Slayer & Harry Potter, T, English, Humor, chapters: 12, words: 19k+, favs: 1k+, follows: 2k+, updated: 3/26/2016 published: 11/12/2014
9 One Last Hope » by Xodarap When a demonic plot in the past changes the future, there's only one Federation timeship that remains unaffected. Alone against an army of starship-sized demons, the ship uses its time machine to retrieve a hero from the past to save the future. The galaxy's one last hope, is Xander Harris. But first, he's going to need some…upgrades.
Buffy: The Vampire Slayer & StarTrek: Other, T, English, Sci-Fi & Adventure, chapters: 2, words: 8k+, favs: 73, follows: 106, 6/15/2015, Xander H.