Invasion by Dr_Tamwe [Reviews - 1]
Sarah Jane has made her way back from Aberdeen, and Harry tries to make sense of her behavior. More a friendship fic than a pairing, really. I never really saw them together as a couple, but you can interpret this as you wish.
Characters: Harry Sullivan, Sarah Jane Smith
Series: None
Invasion by Elwyne [Reviews - 3]
Rose's plans for a quiet evening at home go horribly wrong.
Characters: Rose Tyler, The Doctor (Duplicate 10th)
Series: An Ordinary Life in the AU
Invasion Cardiff by badly_knitted [Reviews - 0]
The world is ending, again; Torchwood might need a little help with this one!
Characters: Ianto Jones, Jack Harkness, Other Character(s)
Series: None
Invasion of Hell, Part II: Dreamless by secooper87 [Reviews - 0]
What's there to fight for, when you don't dare to dream? A lost, enslaved child.
Characters: The Daleks
Series: The Child of Balime
Invasion of Hell, Part III: the Nightmare by secooper87 [Reviews - 0]
The Daleks, and the First Evil. Neither can touch, neither has any mercy, both live only to destroy. Buffy faces that destruction. And her worst nightmare.
Characters: None
Series: The Child of Balime
Invasion of Hell, Part IV: the Doorway by secooper87 [Reviews - 0]
At the end of the pathway through Hell lies an unbreachable doorway. And it's up to Buffy to breach it.
Characters: The Daleks
Series: The Child of Balime
Invasion of Hell: Part I, Genesis by secooper87 [Reviews - 0]
Buffy never set out to be the liberator of hell dimensions...
Characters: None
Series: The Child of Balime
Invasion Of Privacy by badly_knitted [Reviews - 0]
As far as Ianto is concerned, this is a disaster.
Characters: Ianto Jones, Jack Harkness
Series: None
Invasion of the Future by logopolis [Reviews - 2]
The Doctor arrives on Earth in the year 2011 to find it has been invaded and its population turned into slaves! Set after "The Five Doctors".
Characters: Other Character(s), Tegan Jovanka, The Doctor (5th), The TARDIS, Turlough
Series: None
Invasion of the Ice Warriors by merryghoul [Reviews - 0]
A sudden snowfall hits Paris, and it's up to the Doctor and River to find out who's behind the snowfall. (Eleven/River.)
Characters: River Song, The Doctor (11th)
Series: None
Invasion Of The Plastic by Lee Hamill [Reviews - 0]
The Doctor's arch enemy, the Master, is in New York, and is in contact with an old acquaintance.
Characters: Ace McShane, The Doctor (7th), The TARDIS
Series: Seventh Doctor Final Adventures
Inventing The Doctor by rickmaniac101 [Reviews - 0]
John Smith has a rather overactive imagination and discovers that the best way to cope with it is to let it take the form of a hero called "the Doctor".
Characters: Joan Redfern, Madame de Pompadour, Martha Jones, The Doctor (10th)
Series: None
Inventions of Memory by Amy Wolf [Reviews - 13]
She's sure it's not the truth, but it's the closest thing she's got.
Characters: Susan Foreman
Series: Family Histories
Inversion by Ceefax The Sane [Reviews - 4]
Gwen finds herself faced with a version of Rhys that isn't hers. Gwen/Rhys, AU!Ianto/AU!Rhys, AU!Jack/AU!Gwen
Characters: Gwen Cooper, Ianto Jones, Jack Harkness, Rhys Williams
Series: None
Investigation Over by Kittenmommy [Reviews - 5]
Another answer to the DW100 Crossover challenge - Doctor Who/CSI crossover.
Characters: The Doctor (4th), Other Character(s)
Series: None