Captain America, vol 3 (start date 1998) issue #31 (published 2000)
Art by Andy Kubert
Sharon Carter (Agent 13)
Sharon is a world class spy with extensive training in hand-to-hand combat. Born to wealthy parents, she was inspired to become a SHIELD agent by the WWII espionage exploits of her aunt, Peggy. When a planned faked death went badly, Sharon was trapped in enemy territory for an extended period of time. Yet she survived and eventually returned to SHIELD, at times fulfilling the roles of director and liaison to her on-again, off-again boyfriend, Steve Rogers.
The price of freedom is high. It always has been. And it’s a price I’m willing to pay. And if I’m the only one, then so be it. But I’m willing to bet I’m not.