River uses casual brain receptivity all the time, ambiguously, but you can catch her at it plain as day in "Safe." She also uses direct brain whisper projection on Jayne when she tells him she can kill him with her mind - she says it out loud (which isn't against the move), but you can see it go straight into his brain. He caves and does what she wants instead of forcing her hand and sucking it up, but for our purposes here today we can assume it was true.
She uses weird to seize by force that one time, when she kills those 4 dudes and scares Kaylee. I'm pretty sure that move doesn't exist. It's the opposite of a Touchstone.
Most characters could be NPCs or PCs - the fact that River would make a good perversion of birth (my vote) doesn't mean she can't also make a good brainer.