Backgammon Jenny is an agent for both the Index in the Prime Universe, and Dawn in the wider 10,000 Dawns. In the Index, she has risen to be one of the Librarian's Pages, and in Dawn is the leader of the Artemis Corp.
Jenny is an expert at combat, and usually employs a katana, often while using rollerblades to zoom around her opponents.
As a member of two powerful groups, Jenny has participated in many conflicts including the Prime Universe Incursion, where she killed the head of the Great Assimilation's Intelligence division, Memnor.