Paige was a British Men of Letters operative.
In There's Something About Mary, Paige overhears Sam and Dean's fake conversation about meeting a hunter who knows who is behind all the recent murders of hunters in the United States through the hidden wiretap in their bunker. Paige then informs Lady Toni Bevell about this after hearing their conversation.
When Sam Winchester's assault team arrives at the British Men of Letters compound, Paige warns Doctor Hess. During the assault, Paige tries to run to safety and takes aim at Jerry Hollister. Jerry shoots her, killing Paige moments before he is killed by Doctor Hess.