Harry Potter and Castle Crossovers
Filters
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.
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.
Other Life by Dragons-Twilight1992 reviews
Richard Castle was actually Richard Potter twin of James Potter and Uncle to Harry Potter. Richard couldn't take the stress of losing his brother and left the wizarding world shortly after and started a new life in the USA. Now it is 2013 and the time is fast approaching when he will have to tell Kate. But will it be sooner then he thought?
Rated: T - English - Family/Crime - Chapters: 1 - Words: 2,638 - Reviews: 7 - Favs: 37 - Follows: 52 - Published: 2/5 - [Kate B., Rick C.] [Harry P., Ginny W.]
Huge Family by Dragons-Twilight1992 reviews
The Octuplets are the Potter 8 children James Harold Potter and his 7 siblings that were born at the same time as him. All of the married. Each one has children. What will happen when James and Lily turn up alive on July 16th 2000? What will the others say? How big has their family gotten?
Rated: T - English - Family/Hurt/Comfort - Chapters: 1 - Words: 1,107 - Reviews: 7 - Favs: 16 - Follows: 16 - Published: 1/28 - [James P., Lily Evans P.] [Rick C., Kate B.]
Hiding in (Somewhat) Plain Sight by Filodea reviews
What a difference an accident makes. What if Lily Potter tripped, so she wasn't killed by the AK from Voldemort? Lily decides to leave Britain, and go to America. What can someone do with not a lot of regular schooling, and a small child to raise? Why, become an actress! I don't own Harry Potter or Castle.
Rated: T - English - Chapters: 4 - Words: 7,652 - Reviews: 47 - Favs: 125 - Follows: 202 - Updated: 12/29/2013 - Published: 8/9/2013 - Harry P., Lily Evans P., Rick C., Martha R.
When Seamus Met Martha by criminally charmed reviews
Seamus Finnegan has come to New York to visit his cousin Kevin Ryan. How much trouble could he be? Lots.
Rated: T - English - Humor - Chapters: 1 - Words: 5,774 - Reviews: 8 - Favs: 20 - Follows: 6 - Published: 11/28/2013 - Seamus F., Rick C., Martha R., Kevin R. - Complete
Crossing Paths by nikki-rookk reviews
Beckett pulls her wand from inside her coat and pokes a yellow sunflower near the victims head. She finds the scene eerily familiar but can't quite pin point the thought. The Castle story inside the Harry Potter universe.
Rated: K+ - English - Humor/Romance - Chapters: 9 - Words: 9,971 - Reviews: 6 - Favs: 10 - Follows: 20 - Updated: 8/19/2013 - Published: 8/14/2013 - Rick C., Kate B., Javier E., Kevin R.
Murder Mystery Witch by HermioneCastle reviews
Kate Beckett finds out that she is a witch. So she goes to Hogwarts School, during the time of Harry Potter. On the way she meets an annoying boy, who changes her life forever. That boy is Rick Castle.
Rated: K+ - English - Adventure/Parody - Chapters: 8 - Words: 21,694 - Reviews: 13 - Favs: 18 - Follows: 22 - Updated: 6/16/2013 - Published: 4/7/2011 - Kate B.
Murder Mystery Wizard by Hufflepuff519 reviews
Young Richard Castle gets his letter to Hogwarts and discovers a whole new world of adventure awaits him. He also meets the girl of his dreams...can you guess who? multichapter, and from two different perspectives...see first chapter for details.
Rated: T - English - Adventure/Fantasy - Chapters: 8 - Words: 19,262 - Reviews: 12 - Favs: 20 - Follows: 26 - Updated: 4/18/2013 - Published: 4/7/2011 - Rick C.
Clap Your Hands If You Believe by criminally charmed reviews
Castle brings back more than coffee one day. A lost little boy and a detective's secret make a small amusing interlude to a day at the precinct.
Rated: K+ - English - Humor - Chapters: 1 - Words: 2,553 - Reviews: 26 - Favs: 145 - Follows: 32 - Published: 3/22/2013 - Harry P., Albus S. P., Rick C., Kevin R. - Complete
Le conte des 3 frères, sauce Castle by Camlapro reviews
Vous connaissez le conte des 3 frères qui est raconté dans Harry Potter par Hermione. Voici une nouvelle version avec les personnages de Castle. En co avec Camille Francisco SK. (Le drama n'est pas très drama ) Bonne lecture
Rated: K+ - French - Adventure/Drama - Chapters: 1 - Words: 1,211 - Reviews: 1 - Published: 12/5/2012 - Rick C. - Complete
Mistaken Identity by Holz9364 reviews
A strange case causes the mysterious British group the MoM to interfere in Castle & Beckett's case, causing all sorts of chaos. Set in S5 for Castle & post hogwarts, non cannon for HP. Oneshot!
Rated: K+ - English - Humor - Chapters: 1 - Words: 3,332 - Reviews: 6 - Favs: 43 - Follows: 12 - Published: 12/4/2012 - Harry P., Rick C. - Complete
Supposed To by Patricia de Lioncourt reviews
Snape and Hermione are in America trying to find a Death Eater who's using a dark ritual to survive...his latest victim is found by NYPD's 12th Precinct.
Rated: T - English - Mystery/Hurt/Comfort - Chapters: 1 - Words: 4,807 - Reviews: 4 - Favs: 11 - Follows: 5 - Published: 11/26/2012 - Severus S., Kate B. - Complete
Finding Magic by KonohasBlackReaper reviews
Early one morning, the Writer-cop duo run into a green eyed man, who seems to be interested in their discussion on whether magic exists... A little Caskett in the end.
Rated: K - English - Mystery/Humor - Chapters: 1 - Words: 2,549 - Reviews: 22 - Favs: 102 - Follows: 21 - Published: 9/21/2012 - Harry P., Kate B. - Complete
Cops and Wizards by RoseFrederick reviews
Kate Beckett had hoped her problems with wizards, both aurors and murderers, were over and done with. Unfortunately for her, the last case had been just the beginning. Sequel fic.
Rated: K+ - English - Fantasy/Crime - Chapters: 10 - Words: 21,885 - Reviews: 14 - Favs: 25 - Follows: 12 - Updated: 8/18/2012 - Published: 7/26/2012 - Complete
If You Don't Believe, It Might Still Find You by RoseFrederick reviews
Kate Beckett thought that dealing with two serial murders had already been two too many for her career. So she isn't at all happy when bodies start stacking up where the lack of obvious death wounds and strange wooden sticks are the only clues.
Rated: K+ - English - Fantasy/Crime - Chapters: 9 - Words: 16,709 - Reviews: 19 - Favs: 55 - Follows: 26 - Updated: 1/14/2012 - Published: 1/1/2012 - Complete
Life In a Moment by Berserker Nightwitch reviews
His name wasn't always Kevin Ryan. He hadn't always planned to become a New York City detective. But he watched his friends and family die, unable to help them. Fifteen years later, he found himself watching again.
Rated: K+ - English - Angst - Chapters: 1 - Words: 943 - Reviews: 8 - Favs: 47 - Follows: 17 - Published: 12/22/2011 - Kevin R. - Complete
The death of Draco Malfoy by chihuahualov reviews
Kate Beckett and Rick Castle are investigating the death of Draco Malfoy but they will soon find out that they have uncovered a whole new world that is far over their heads.
Rated: K+ - English - Adventure/Crime - Chapters: 1 - Words: 248 - Reviews: 2 - Favs: 5 - Follows: 9 - Published: 12/19/2011 - Scorpius M., Rick C.