Zee (played by Nona Gaye) appears in The Matrix Reloaded and The Matrix Revolutions.
Zee is a native Zionite who experienced the pain of losing her brothers Dozer and Tank (from the original Matrix film), both of whom were killed while serving aboard the Nebuchadnezzar. Unbeknownst to her, Zee's husband Link had a pact with Dozer that he would take over as Operator on the Neb should anything happen to Dozer. It's a constant thorn in the side of their marriage, with Zee demanding that Link switch to another ship, and Link refusing to break his promise to his wife's deceased brother. Ultimately, Zee supports her husband's decision, and even takes up arms in the defence of Zion against the invading Machine army (as shown in Revolutions), attempting to stop the diggers with shoulder-mounted rocket launchers. She and another Zionite, Charra (Rachel Blackman), form a loader-gunner team (with Zee as the loader, and Charra as the trigger). Charra is killed while attempting to flee from a pack of Sentinels, although Zee narrowly manages to escape. Zee is also the sister-in-law of Cas, who was Dozer's wife.
Zee plays an integral part in the battle, by providing Kid with cover while he opened the gate to Zion. She uses a "lightning gun" to shoot down a Sentinel that was about to kill Kid, allowing Kid to blast open the gate. This allowed the Hammer to crash land and activate their EMP, disabling the first wave of Sentinels. This, in turn, gave Neo and Trinity the time they needed to get to the machine city and negotiate peace.
Zee is an adherent to an unspecified religion, in contrast to her irreligious husband Link. As such, she gives Link a charm necklace before he departs Zion with the Neb; he wears it ("Couldn't hurt," he says) during the climactic flight back to Zion during Revolutions, and it is implied that he too becomes involved with Zee's religion.
The role of Zee was originally given to singer/actress Aaliyah, who was killed in a plane crash on August 25, 2001, before she could complete shooting her part for The Matrix Revolutions. Many actresses were named as potential replacements, including Samantha Mumba, Brandy Norwood and Tatyana Ali. Ali actress Nona Gaye was named as Aaliyah's replacement in April 2002. Gaye was nominated for an NAACP Image Award along with co-star Jada Pinkett Smith for the role of Niobe.
Read more about this topic: List Of Minor Characters In The Matrix Series