Agent is one of Aunt Arctic's puffles, mentioned in the Club Penguin Times. She is a normal Pink Puffle who resides in Aunt Arctic's igloo. She has never been publicly walked by Aunt Arctic but is still cared by and loved by her. It should also be noted that she is named after her owner's secret identity's line of work.
In the first secret mission, if you click or roll on Agent, she will blush.