In her role has Cameron , she really gives me the crepps sometimes. There is this scene in the first season (episode 7) ,she get in to the ballet class to get to the chessmaster who is the brother of the ballet teacher.And that scene (in the hotel room) , well that was really creepy.She walks by at those two criminal , like she wouldn´t understand that they are there to kill those people.But she did understood,she just didn´t care.Because later on the next scene as she talks to Sarah,Sarah asks her if she has killed them and she says:"No.It wasn´t my mission." icecold.
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Jim:-"Little girl, you freak me the hell out.On the outside you`re as pretty as a picture,but on the inside..."

This scene is in Serenity:
After River had knocked Jayne down, and by doing that alerted the crew to check her, simon is left alone standing at a door. When Simon looks trough a window in the door River suddenly appears there, she looks quite normal.

However after opening the door she suddenly hits Simon and kicks him unconscious, the view angle turns from floor and she stands there looking down a bit like Cameron, eyes wide open, pointing gun at him. The way she is portrayed there is just frightening.

I really thought she went "bad" again and is going to make huge problems to the crew when I first saw the movie.

for me it was in this seasons terminator, but it was more shock, in the bowling alley where she just shot those 2 guys in the head so nonchelantly, i was like open mouthed for abit then kinda went "paul, she's a terminator" lol but yea probably that one

Yeah. that was a great and scary scene.

yeah i thought that too. but its a reminder that no one takes Cameron's purple coat and gets away with it. i know it was for security reasons, but she is really attached to that coat.

lol its a lovely coat but not worth ya life eh lol

She hasn't scared me, yet...
But there's one scene in Firefly where i was kind of shocked:
-River, very calmly takes a kitchen knife and takes a slash at Jaynes chest, smiles and says he looks better in red !!

It just came out of nowhere!

T:SCC has many scary scenes with Cameron. At least she's a terminator
But River Tam scares me more because she's so unpredictable!
Once she's calm it's ok. But when she go mad it's like "holy shit! this girl can kill you with bare hands!". Kind of scary.

I can say when Summer make me very sad: when, in Alison from palmdale, she says that her parents all are dead, and she begin cry...

I cry whit she.

In that episode the sadest part for me is when she calls Alison's mother but she doesn't know her and she becomes sad.
She just made me feel like hugging her and conforting her.
Summer tends to give me that feeling whenever she looks sad