The TARDIS has taken Elsa, Anna, Olaf and Kristoff to another cold world, which this time is very unfamiliar to them. It is however quite familiar to the Doctor, and so is the threat they are going to face. Sequel to "Am I a good girl?"

Hell, the Land of Sinners, where every year Angels descend from Heaven to exterminate the souls of the damned to keep Hell's population at bay. Charlie Morningstar, the Princess of Hell, has a plan to stop this atrocity by redeeming the souls, and a certain Mad Man with a Box may give her a hand...

After the events off book 2 the Doctor who is in and the MCU is changed for ever (please note I don’t own doctor who or MCU)

The Doctor first met Marinette when she was a little girl, and he was in his first incarnation, and over the many, many years he would run into her, at various ages, until they grown fond of her. The damper on it is that Doctor knows Marinette's death is a fixed point in time.

TimeLord!Harry has managed to hold off Regeneration for now but his Regeneration is now about to happen

Barty Crouch Jr. and the Doctor are in for the surprise of their lives when they are forced to live in one another's shoes. Now both men must navigate and survive the other's unfamiliar world, all the while trying to solve the mystery behind their switch.

NON-CANON! Escaping from enemy fire, A Time Lord enters a parallel universe and arrives on Remnant where he meets Team RWBY. He'll get to learn about them and their features on Earth as they learn about him and the features of the outer world, universe. A Story of an Odd Gentleman in a Blue Box, the 1st Doctor in the RWBY universe.

Recruited by the mysterious Lutece twins, a band of heroes are sent on a mission to hunt down the sinister Professor Moriarty as he attempts to become the greatest criminal in the multiverse.

Ember Potter knew that she was different. If the two hearts didn't give it away, it was all the weird stuff that kept happening around her...kinda like magic. This was confirmed when she received a letter from Hogwarts on her 11th birthday. Follow the Girl Who Lived as she navigates her way through her first year. HP/DW crossover with some elements of Marvel (Fem!Harry)

Fallon Winchester , was a survivor of a lot of shit along with her twin brother Dean and her younger brother Sam ... when one fateful day a bright crack appear and sucked her in to another world , where she jumps around a mad man with a blue boxes timeline... who is he? How does he know her so well? Will she ever get home? Doctor who crossover with supernatural AU OCXdoctor

Avengers have a vampire in there mist

The doctor was alone and doing what he could be where space and time awaited his adventures. During one of his adventures, he meets rather a group of strangers who come from different worlds (Nasuverse) as they band together to stop forces from destroying everything. Even save the world or the whole universe. Twisted Reality that rewrites the timeline into chaos as destiny is set.

Ryan Targaryen is now king of the vampire kingdom in the Phoenix kingdom rules with his mate/wife sequel to house of the dragon S1 but I don’t own house of the dragon HBO/BBC Doctor Who

One shot. The Watcher introduces Mei and her friends an alternate universe version of The Doctor and what her appearance means for the greater multiverse.

The TARDIS mysteriously materializes on Gaia...what would the abnormal outside presence of the Doctor do to the fate of everything on this world? (This story will be updated very slowly - Alternate Universe Doctor)

Ryan is life will never be the same again please note i don't own house off the dragon or Doctor Who

The Doctor and his companion Rose Tyler, have travelled along journey into the tomb of Xenomorphs and Predator as they thought in the battle for centuries ago.

Set during the The Infinity Saga

A special Star Slitheen infiltration unit is finally sent in to Torchwood, only to discover dark realities. Meanwhile, unexpected intruders pay a visit to UNIT, catching Saba and her siblings unaware. The intrepid freelance journalist Sarah Jane Smith tries to uncover the sinister truth herself before getting caught up in a hot war between two rival Raxicoricofalipatorian Familes!

Now that Dean is back from Hell, he and Sam are racing to stay ahead of angel plots, demon deals, and everything in between. But when things get too overwhelming, the Doctor might just have to step in and help.

1936: A new casino opened in New York City. 26-year-old gangster Anthony de' Marconi is interested and wants to investigate since the casino is hurting his family's affairs. He'll soon find out that he's not the only one who is suspicious of that casino, especially a certain madman in a rainbow coat... (PREQUEL TO THE SINS OF A TIME LORD)

In a world where many different realms of sci-fi and the supernatural collide in epic unison, two hunters of the supernatural, Sam and Dean Winchester, end up running into a time-traveling alien who calls himself the Doctor and his beloved companion, Rose Tyler. Ever since then, they'd occasionally bump into the Doctor and one of his companions, always meeting out of order.

Valerie Frizzle always thought that her gifts were normal and that she was human. Until the day she finds out that she was adopted. Deciding to go on a path to find out who her real parents are, she climbs aboard her Magic School Bus and goes on a journey through Time and Space. Along the way she meets a friendly alien who calls himself "The Doctor" who confuses her for his wife!

Set after Guardians of the galaxy volume 2

The Spartax Empire have arrive