In my first crossover ever with an alternate plot, Dr. Horrible relocated to New York City after defeating Captain Hammer and starts a new life with his new friends as Barney Stinson. But what happens when Captain Hammer becomes New York's greatest hero

What I think should have happened after Sherlock 'falls'

Penny had been his chain to morality and sanity, but with her gone there was nothing stopping him from committing felonies to achieve his evil ends. At first he had felt the crushing weight of guilt, pain, and sorrow for his loss. But over the years that pain had ebbed away, replaced with an untapped malice that yearned to be unleashed.

Sheldon is disconcerted by finding the wrong Penny in his building. Meanwhile Dr Horrible is trying to figure out what went wrong with his device. Set during early seasons of "Big Bang Theory" and post "Dr-Horrible".

John is caught in the middle of an explosion, literally, and the police find a stiff. After waking up in the hospital, John and Sherlock try to hunt down the third man who was there to try and get answers, but John is getting the unsettling feeling they may be in more trouble than they had realized.

The title is silly, but the story is not. This picks up where Chronicle and Dr. Horrible's Sing Along Blog left off. Andrew is not dead, and Dr. Horrible is sent to convince him to join the Evil League of Evil.

Penny didn't die, but with shrapnel headed to her heart, isn't expecting to live for long. But then Tony Stark steps in and makes her an arc reactor, saving her life, and lets her move into Avengers Tower for her safety. Meanwhile, Dr. Horrible hears that a valuable piece of Stark technology has been place into a civilian, and will do anything to get his hands on it. Dr. H x Penny.

A re-work of Penny's Song, how Steve Rogers is dealing with his world

Thor and Steve are given the gift of a family through magic, but they are a family out of time and they need to learn that letting children around alien technology is never good. Thor/Steve, mpreg.

It's so secret that Barney Stinson is a man of many secrets, but there are some that he himself has kept buried from everyone for the past 7 years. And their names are Dr. Horrible and Penny. So when fate has it that he meets a certain Captain again, he once again dons the white coat. HIMYM/Dr. Horrible/Castle crossover. takes place when Barney/Robin are dating. rated T for BARNEY.

Some short fics about Billy and Barney In a completely no slash way; and yes the title is stolen from a MCR song Rated T for possible swearing; might go up if I'm in that sorta mood. "Twin theory"...I guess.

John's not got an easy life. Fulfilling his lifelong dream of getting into the evil criminal web of evil isn't easy, and neither is taking all those beatings from Colonel Moran, corperate tool... but maybe, if he manages to pull of this one heist he can finally get Moriarty's approval AND finally work up the nerve to talk to his neighbour, Sherlock Holmes.

What could possibly happen when Castle listens to "Better than Neil" before he goes to sleep?

The E.L.E. sends Dr. Horrible to New York as part of a test. There he will team up with Dr. Octopus and take on Spider-Man. And just maybe he'll learn to finally get over Penny's death.

Loki gets a letter from The Evil League of Evil

Billy has his perfect date programmed by the LA Dollhouse

Billy and Barney struggle to reclaim their lives and have some fun along the way. Barney/Robin

Set after Act III; Dr Horrible/Billy moves to New York as Barney Stinson and Moist becomes Howard Wolowitz in Pasadena. What if Bad Horse sends them a letter to come back to LA for a meeting? And their friends come along? This isn't good...

Dr. Horrible realizes he has only one option left if he wants to save Penny. Unfortunately, the US Air Force isn't in a sharing mood. Note: -not- a DH/SC ship

Just when you think you know someone, life throws you a curve ball you don't see coming. "Barney...why is there a giant gun in your suitcase?"

Barney and Billy haven't spoken in years. So what happens when Billy decides to move to New York, NY after his latest tragety with the girl of his dreams? Rated T for later.

Drabble written for the prompt 'Dr. Horrible & Doctor Who - A case of mistaken identity'.

Sequel to Billy Stinson. Recommended reading: A Penny for Your Thoughts & Horribleness. For every day there is a night. For every world there is an underworld. For every hero there is a villain. Appearances can be deceiving.

HIMYM & Dr. Horrible crossover. What does Barney Stinson really do for a living? Why, of all places, did he decide to fulfill his community service hours at a homeless shelter? And why, oh why, does he seem to hate frozen yogurt so much?

Ted plus Internet. Marshall plus conspiracy theories. Robin is relieved that it's not another cat video. Oneshot.