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A Normal Guy by MeGkAtHeRiNe reviews
He jumped, the coffee he had been drinking flying from his hand and splattering all over the floor of the precinct. "Nothing," he rushed out, sending a nervous smile to the younger brunette. "Nothing it's nothing."
Crossover - Criminal Minds & Castle - Rated: T - English - Drama/Romance - Chapters: 12 - Words: 10,697 - Reviews: 18 - Favs: 5 - Follows: 10 - Updated: 6h ago - Published: 4/5
Nueva vida, Nuevo equipo by katebeckett78 reviews
cruce de dos series. 5 agentes que son reunidos para una nueva aventura. podrán lograrlo? pesimo resumen. equipo completo de ambas series
Crossover - Criminal Minds & Castle - Rated: K+ - Spanish - Drama/Romance - Chapters: 3 - Words: 4,705 - Reviews: 1 - Updated: 10h ago - Published: 3/20 - A. Hotchner/Hotch, Elle G., Rick C., Kate B.
Age of Miracles by Laura Picken reviews
The Guardians, the Avengers, and a 'few' of their friends and allies go to war against HYDRA.
Crossover - Castle & Avengers - Rated: T - English - Adventure/Fantasy - Chapters: 2 - Words: 2,013 - Reviews: 2 - Favs: 3 - Follows: 9 - Published: 13h ago - Rick C., Kate B., Captain America/Steve R., Agent Phil Coulson
Starting Fresh by CassieCastle47
When Jamie Reagan meets Alexis Castle in a coffee shop, their common ground leads them to learn about themselves, each other, and the world they both live in as they heal their hidden wounds. (Incorporates both shows)
Crossover - Castle & Blue Bloods - Rated: K+ - English - Romance/Family - Chapters: 1 - Words: 1,078 - Follows: 2 - Published: 17h ago
A Writer, A Detective, and A Vigilante? by IsaBean reviews
What happens when a murder takes place in a circus? How does a kid figure out that there is a pattern? Will The Young Justice team get in the way or help out the case? Even though there mysteriously absent one member. Where is Robin? Why Does this "Snotty Rich Kid" (A name mentally give to him by Conner and Esposito) act like he knows so much about the team?
Crossover - Castle & Young Justice - Rated: T - English - Adventure - Chapters: 3 - Words: 2,498 - Reviews: 1 - Follows: 3 - Updated: 4/15 - Published: 4/10 - Rick C., Kate B., Richard G./Robin, OC
Sins of our Past by The Cocky Undead reviews
Castle has been searching for Clint ever since the whole Avengers and Alien incident in New York the year before. Clint is sent to tell Castle to back off, but that's not his only mission in the city. (Sequel to Nighthawks).
Crossover - Castle & Avengers - Rated: T - English - Family/Crime - Chapters: 5 - Words: 12,588 - Reviews: 21 - Favs: 27 - Follows: 62 - Updated: 4/11 - Published: 11/3/2013 - Rick C., Kate B., Hawkeye/Clint B.
Batman Begins by Katrina Castillo reviews
After the League departs, Castle is ready to fight criminals in New York - he becomes the Batman. It doesn't take long for trouble to start: a bounty is put on his head, the NYPD doesn't trust him, Selina Kyle is making his life difficult, someone plans to destroy the city... And Castle will face an enemy he never thought possible. (Part two of the 'Knight of the Castle' series)
Crossover - Batman Begins/Dark Knight & Castle - Rated: T - English - Crime/Adventure - Chapters: 10 - Words: 25,212 - Reviews: 39 - Favs: 28 - Follows: 22 - Updated: 4/11 - Published: 9/5/2013 - Selina K./Catwoman, Rick C., Roy M.
Halloween Surprise by AngelsandDemons09
Firefly/Castle OneShot. Castle reluctantly goes trick-or-treating with Alexis while working a case, and needs an outfit.
Crossover - Firefly & Castle - Rated: K+ - English - Sci-Fi - Chapters: 1 - Words: 438 - Favs: 2 - Published: 4/8 - Mal, Kate B., Alexis C. - Complete
Of Nothing in Particular by tumbaleguineaboar reviews
Nikita is a successful auror with nothing particularly extraordinary going on in her life, but what happens when her world becomes merged with the world of Richard Castle? Mix in some wizarding mafia, a murder, a bunch of quite interesting friends and an awesome kid, and you've got yourself a soup of entropy.
Crossover - Harry Potter & Castle - Rated: T - English - Romance/Mystery - Chapters: 19 - Words: 56,323 - Reviews: 12 - Favs: 13 - Follows: 18 - Updated: 4/7 - Published: 6/7/2013 - OC, Rick C.
Not Broken Just Bent by MustBeAWriter reviews
Apparently, they have more in common than she'd originally thought.
Crossover - Criminal Minds & Castle - Rated: K+ - English - Friendship/Hurt/Comfort - Chapters: 1 - Words: 782 - Reviews: 1 - Follows: 1 - Published: 4/6 - E. Prentiss, Kate B. - Complete
Biting the Big Apple by DragonKnight159 reviews
What should have been a relaxing day for Castle and Beckett turns into a much bigger crime than they could have imagined when two "FBI" agents show up for an unusual crime. Set Castle Season 5 and Supernatural Season 8. Contains Caskett. (Temporarily on Hiatus)
Crossover - Supernatural & Castle - Rated: T - English - Crime/Supernatural - Chapters: 6 - Words: 7,805 - Reviews: 15 - Favs: 22 - Follows: 54 - Updated: 4/5 - Published: 2/23/2013 - [Rick C., Kate B.] Sam W., Dean W.
Ain't Nothing but a Family Thing by Prophet1 reviews
Castle Post S4, Blue Bloods Post S2 Third Watch post series. Rating M to allow for language and situations. Castle owes an old friend a favour, Kevin Ryan gets a new partner in Jamie Reagan; and a past Ryan has tried to stay away from collides with Castle's. Rick and Kate try to navigate a new relationship, but old secrets never stay silent for long. family/casefic
Crossover - Castle & Blue Bloods - Rated: T - English - Chapters: 17 - Words: 25,926 - Reviews: 18 - Favs: 9 - Follows: 21 - Updated: 4/5 - Published: 9/4/2012 - Rick C., Erin B.
Power of Persuasion by Laura Picken reviews
Someone has been guiding and supporting Agent Phil Coulson since the day of his resurrection. But when Coulson turns to this source of support to save Skye, he learns more about Skye (and himself) than he ever could have imagined. In my "Four Winds" alternate universe ("Castle"). Sequel (in spirit) to my Castle/Avengers X-over "North Star".
Crossover - Castle & Agents of S.H.I.E.L.D. - Rated: T - English - Adventure/Fantasy - Chapters: 21 - Words: 35,658 - Reviews: 49 - Favs: 15 - Follows: 19 - Updated: 4/5 - Published: 3/16 - Javier E., M. Fallon, P. Coulson, Skye - Complete
Castle Children by Dragons-Twilight1992 reviews
Bella Swan is actually Isabella Martha Castle. She went to her Uncle Charlie with her siblings but Alexis, to escape the fame of her father. Now she is a vampire and her father wants her home to meet his fiancée. How will she tell him she was married with a 3 year-old daughter?
Crossover - Twilight & Castle - Rated: T - English - Family/Drama - Chapters: 1 - Words: 801 - Reviews: 7 - Favs: 11 - Follows: 17 - Published: 4/4 - Bella, Edward, Rick C., Kate B.
Convencion de Escritores by Friki reviews
ubicada en las temporadas 6 de Castle y Bones... Maldita sea porque ahora, porque no hace un año cuando él se lo pidió, porque ahora que en su vida hay otra mujer, cuando decidió seguir adelante...
Crossover - Bones & Castle - Rated: K+ - Spanish - Chapters: 2 - Words: 3,580 - Reviews: 2 - Updated: 4/2 - Published: 3/26
Tyranny of A Rational Mind by Saul Good
Alexis and Castle approach a problem with logic.
Crossover - Buffy: The Vampire Slayer & Castle - Rated: T - English - Chapters: 1 - Words: 530 - Published: 3/30 - Rick C., Alexis C. - Complete
The Shelter by DancingStar01 reviews
The Earth is invaded by machines. Jack, Sue, Rick and Kate seek refuge in the mountains. Pairing: C/L, S/J, R/K PART 3 ONLINE!
Crossover - Psi Factor & Castle - Rated: T - English - Sci-Fi/Mystery - Chapters: 3 - Words: 15,019 - Reviews: 1 - Updated: 3/29 - Published: 11/8/2013
A Foxxy Confusion by TayTa1895
Set the day after the end of "Time Will Tell". Castle is home, writing, and Beckett is at the Precinct doing paperwork, at least until she gets a surprise visit by our favorite witch.
Crossover - Castle & American Horror Story - Rated: K - English - Humor/Sci-Fi - Chapters: 1 - Words: 751 - Published: 3/27 - Rick C., Kate B., Cordelia F. - Complete
A New Life by imaginarialiquidnovi reviews
Hey all! First fanfic ever so any feedback would be GREAT! I decided to do a castle/firefly crossover cause my brother and I thought of this crazy, cool way to combine the two. For the sake of the story, Josh is not Beckett's boyfriend when she gets shot and Head Case happens before Beckett gets shot...just go with it please hehe. **Castle/Firefly: not mine! Hope you like it! :)
Crossover - Firefly & Castle - Rated: T - English - Sci-Fi/Romance - Chapters: 6 - Words: 6,233 - Reviews: 13 - Favs: 8 - Follows: 33 - Updated: 3/24 - Published: 8/5/2013 - Kate B., Rick C.
Unexpected Reencounters (24Mar) Chap1 by TheMentalistCastle
Red John decides to kill a woman in New York for a change. Lisbon, along with his team, are forced to travel to New York to investigate the case and help the team in charge of it. But what was not expected is that both heads known each other. Teresa Lisbon and Katherine Beckett had been best friends during his years in the police academy. Castle - S6 / TheMentalist - End of S5
Crossover - Mentalist & Castle - Rated: T - English - Romance/Drama - Chapters: 1 - Words: 3,054 - Favs: 2 - Follows: 3 - Published: 3/24 - [Patrick J., Teresa L.] [Rick C., Kate B.]
Legitimate Theory by Tippie reviews
(AU crossover, prompt.) The prompt sent in: Caskett, investigating the disappearance of Emma/Henry from NY.
Crossover - Castle & Once Upon a Time - Rated: K - English - Mystery/Humor - Chapters: 1 - Words: 682 - Reviews: 3 - Favs: 4 - Follows: 2 - Published: 3/23 - Rick C., Kate B., Emma S., Henry Mills - Complete
The Essence Of Existence by BWjournal reviews
What happens when your beliefs are questioned? When everything that you held as true changes in the most unexpected of ways? Will you hold that hand until the end? Written for DancingDragon42 for the Secret Santa Fanfic Challenge 2012.
Crossover - X-Files & Castle - Rated: T - English - Sci-Fi/Adventure - Chapters: 21 - Words: 89,650 - Reviews: 124 - Favs: 20 - Follows: 33 - Updated: 3/21 - Published: 12/20/2012 - F. Mulder, D. Scully, Rick C., Kate B.
I'm On My Way by Skye Coulson reviews
AoS/Castle crossover! Skye is the daughter of none other than THE Richard Castle. But, more importantly, she's also the daughter of an Asgardian mother. What happens when Coulson's first protege-Special Agent Brynna Harmon-reunites her half-brother with his long-lost daughter? Spoilers for "Yes Men"
Crossover - Castle & Agents of S.H.I.E.L.D. - Rated: T - English - Romance/Hurt/Comfort - Chapters: 4 - Words: 20,878 - Reviews: 12 - Favs: 13 - Follows: 32 - Updated: 3/19 - Published: 3/11 - [P. Coulson, Skye] [Rick C., Kate B.]
Arc of the Curve by Mountain King reviews
Some people are extraordinary. This can be both a blessing and a curse. For Alexis Castle it's been a secret she's kept all her life, now she's had to reveal that secret and it means that both her and her family learn just how extraordinary people can be.
Crossover - Tomorrow People & Castle - Rated: T - English - Sci-Fi/Supernatural - Chapters: 2 - Words: 6,176 - Reviews: 2 - Favs: 4 - Follows: 9 - Updated: 3/19 - Published: 2/14
Tracker Castle by DrillMan
Castle and Beckett discover a bizarre death in their town is connected to some bizarre stuff in Chicago and aliens from outer space.
Crossover - Tracker & Castle - Rated: T - English - Sci-Fi - Chapters: 1 - Words: 377 - Published: 3/18 - Rick C., Kate B.
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