The sister of Magnus Hansen and aunt of Seven of Nine, who speaks to her niece from Earth for the first time over the Pathfinder link in the episode Author, Author.
Irene Hansen appears in the Voyager episode Author, Author. Once Starfleet establishes a short daily window of two-way communication with Voyager, each member of the crew is given a few minutes to speak to someone at home, and Seven of Nine hesitantly contacts her father's sister.
Irene remembers Annika as a strong-willed six-year-old who stayed with her shortly before Magnus and Erin Hansen left to study the Borg. She recalls the child's fondness for strawberry tarts and her stubbornness when denied them.
The short conversation gives Seven her first living link to a human family, and a reason to think about what might await her in the Alpha Quadrant.