I am badly in need of TSCC characters for my John Connor (mankindsavior) to interact with over at the pan-fandom game projectchaos. Multiples (as well as AUs and OCs) are allowed so don't let the taken list put you off.
A Cameron would be amazing for obvious reasons [possible relationship not required, I'd adore her for the character development alone] but I would honestly love to see anyone, be they ally or enemy. The future savior of mankind got himself killed (briefly) during an alien invasion plot while he was trying to save mankind not too long ago, so he could kind of use his canon-mates around to have his back.