Cas Top Tier Fanfiction
Top tier fanfiction based on concept and execution, and — preferably — excellent grammar.
They simply hit real good.
- Marked as a series, as abandoned, as a WIP, on hiatus, or complete
- I tag everything myself with the fandom, -centric, and tags I find most important
(Note: Here, “unread” means it is still updating or I have not finished reading, not that it has not been read at all!)
(Closed, Moderated)
Recent bookmarks
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Oh, To Live Again by CannedGenie
Fandoms: 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia (Anime & Manga), Avatar: The Last Airbender (Cartoon 2005)
09 Aug 2026
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Summary
Destiny trips over karma, disturbing fate. Azula's lightning strikes Zuko, tearing through his chest in a way Katara has no hope of repairing. Yet, destiny is destiny, and there is still much for the little prince to do. There is more than one way to restore balance, and more than one world that needs balance restored.
or
With just a bit of spiritual meddling, you too can become a part of one of Japan's most dysfunctional families!
Bookmarked by PerpetualSickness
28 Aug 2026
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Bookmarker's Notes
Chapter 2 (of 3) — has not updated
SO GOOD. Read it! Read it!
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Black Cat Wandering Backwards on the Road to Nowhere by AnIdiotLearning
Fandoms: Naruto, 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia (Anime & Manga)
10 Jul 2026
Tags
Summary
Shinsou Hitoshi dies whilst under the influence of multiple quirks and is reincarnated as Hatake Kakashi.
(Can be read without any knowledge of Road to Nowhere. This is just the same concept reversed.) (But it's a really good story so you should do that anyway.) (For your soul.)
Most kids with undesirable quirks dream of a place where powers can be gained and discarded like any other skill. Where you don't have to be defined by the power your parents passed onto you. Where everyone has the potential to learn to use any quirk they like, as long as they work for it.
But even fantasy worlds are plagued by the inherent unfairness of genetics, apparently.
And war. There's also that.
Series
- Language:
- English
- Words:
- 60,435
- Chapters:
- 8/20
- Collections:
- 1
- Comments:
- 227
- Kudos:
- 294
- Bookmarks:
- 142
- Hits:
- 5,210
Bookmarked by PerpetualSickness
28 Aug 2026
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Bookmarker's Notes
Chapter 8 — has not updated
Yes yes yes yes yes yes yes
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The Devil's in the Details by DontTalkToMeAboutLife
Fandoms: Supernatural (TV 2005), Criminal Minds (US TV)
02 Nov 2025
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Summary
"For the uninformed… Dean and Sam Winchester. Wanted in multiple states. Murders, grave desecration, credit card fraud, grand theft auto - you name it. During their time incarcerated, Hendrickson found this.”
Hotch opened the box and began laying out its contents across the table - passports, credit cards, driver’s licenses. Dozens of them.
"I’m going to assign each of you a selection of identities to look into. I want you to work through each one, track where, when, and how each was used. We'll present our findings on Friday."
OR
The BAU are assigned a deep dive on the Winchester brothers. It may raise more questions than answers.
Series
- Part 1 of The Devil You Know
- Language:
- English
- Words:
- 51,669
- Chapters:
- 18/18
- Comments:
- 572
- Kudos:
- 2,700
- Bookmarks:
- 471
- Hits:
- 46,907
Bookmarked by PerpetualSickness
25 Aug 2026
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Such a fun and well made fic! :)
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Unnatural by DontTalkToMeAboutLife
Fandoms: Supernatural (TV 2005), Criminal Minds (US TV)
01 Jul 2026
Tags
Summary
“Hands in the air!”
Morgan had Sam on the floor in seconds, knee in his back. Jenkins shoved Dean down hard enough that the carpet burned his cheek.
“Sam and Dean Winchester, you are under arrest.” Hotch began.
“Where’s Hendrickson?” Dean asked, the words bitten out from where his chest was pressed to the floor.
Hotch held his stare, steady and cold. “You thought you had trouble when it was just Hendrickson. You’ve got an entire unit now, Dean.”
OR
The BAU finally get their claws into the Winchesters. They aren't going to let go without a fight.
Series
- Part 2 of The Devil You Know
- Language:
- English
- Words:
- 53,934
- Chapters:
- 12/?
- Comments:
- 764
- Kudos:
- 2,657
- Bookmarks:
- 550
- Hits:
- 48,967
Bookmarked by PerpetualSickness
25 Aug 2026
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Bookmarker's Collections:
Bookmarker's Notes
Chapter 12 — has not updated
I LOVE IT
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Substitutions by Calamityjim
Fandoms: Fullmetal Alchemist - All Media Types, Criminal Minds (US TV)
05 May 2025
Tags
Summary
Edward Elric fits the profile of their serial killer. His brother Alphonse fits the victimology. The BAU is fairly certain they've solved this one before there was another victim.
The Elrics are fairly certain the FBI is full of morons.
Series
- Part 1 of Intersections
- Language:
- English
- Words:
- 8,861
- Chapters:
- 1/1
- Collections:
- 9
- Comments:
- 108
- Kudos:
- 1,777
- Bookmarks:
- 201
- Hits:
- 12,205
Bookmarked by PerpetualSickness
24 Aug 2026
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REALLY GOOD