This spam is a spoiler party.
The Action Girl is, essentially, Badassitude molded into a sleek female frame: a female character who is spunky, agile, and can take you down with an array of kicks, punches, or diverse Weapons Of Choice. She is not a Distressed Damsel. She doesn't sit around waiting to be rescued. She doesn't only plan how to rescue herself. She doesn't talk/manipulate/charm her way out of problems.
Ashley Magnus/Kate Freelander
A character who gets away with outright insane stunts (defusing a bomb with their teeth, conning a mob boss, getting into a firefight with the entire US army, etc.) that would never work in real life.
HBIC Helen Magnus
I mean obviously. Look at this woman. She is clearly the head bitch in charge, and she has been for 158 years. I'd like to see you do that. I'd also like to see you blow up a helicopter with a vampire squid and an amphibious scorpion fighting on it. Oh wait. You can't. Because you're not this GQ Motherfucker. And her hair is always perfect.
One of the more common Alternate Universes. The heroes are sent Twenty Minutes Into The Future, and while they were gone the villain(s) took over. Nine times out of ten the hero will meet La Resistance and/or Future Badass versions of his friends who were left in the past, though they will of course usually appear older and/or more haggard (due in part to their having had to endure every event which led up to this time).
This is my favorite episode thus far. Magnus gets a case of the "who wants to live forevers" and goes on the search for the cure to her longevity issue. Which leads to all the joys of a zombie apocalypse. In related news, Amanda Tapping's acting destroys every viewers' soul.
Beethoven Was an Alien Spy
The "revelation" that a famous historical figure actually had a secret life far more fantastic and magical than history records.
John Druitt, Nikola Tesla, James Watson
Well I don't know about Beethoven being an alien spy but I can tell you that John Druitt, who you probably know as Jack the Ripper, was able to avoid the law because of his teleportation abilities. And then there's Nikola Tesla, everyones favorite crazy death ray building scientist. Who's kind of a vampire. Well. He was. Now he appears to have a bad case of static cling? Only season 3 will tell. And of course we can't forget about James Watson, who discovered this little thing called DNA, and injected himself with the same vampire blood as the other two. Best group of college buddies.
Disposable Sex Worker
Want to stress how depraved and vicious your killer is? Have him - and it's nearly always a him - target and/or kill a few prostitutes or other sex workers - and they are nearly always women - to drive home the fact.
"The next day he's turning a working girl into a canoe." - Henry Foss
Well hello. When one of your main characters is Jack the Ripper you're going to lose a hooker or two...
A character does something incredibly brave and dies, is maimed, or is otherwise irrevocably harmed doing it.
So Ashley was kidnapped and brainwashed and turned into some sort of ubervamp (no not that one). She manages to fight off the brainwashing just long enough to blow herself and the last of the superpowered bad guys up to save her mother's life.
No seriously. Crying. Forever.
Hey! It's That Guy!
When you see someone you've seen elsewhere in a different role appear on another program, this thought may go through your head:
"Hey! It's That Guy! He played [someone else] in [another show].
Helen Magnus, John Druitt, Terrance Wexford, Jimmy
The cast of Stargate had to go somewhere...
Jack the Ripper
Arguably the first, and most likely still most famous, modern example of a Serial Killer.
It's small. It's fluffy. It's adorable. And if you get on its bad side, your death will be painful, but swift.
Oh God. The Nubbins. See also Nightmare Fuel. Clearly Ashley never owned a Furby.
The Magnificent Bastard is what happens when you combine the Chessmaster, the Trickster, and the Manipulative Bastard (Large Ham is optional): bold, charismatic, independent, and audacious. Generally, this character is real good at being bad.
Nikola Tesla ♥
A crowd of random people spontaneously burst into a choreographed song and dance number.
A woobie (named for a child's security blanket) is that character you want to give a big hug, wrap in a blanket and feed soup to when he or she suffers so very beautifully.