Wallace Shawn as Grand Nagus Zek on Star Trek: Deep Space Nine.
- "Oh believe me, the Nagus has the greatest business mind in the entire Ferengi Alliance, always thinking ten, sometimes twenty steps ahead of everyone else."
The Grand Nagus is the leader of the Ferengi Alliance. He is both the political leader of the species as well as the economic leader. Virtually all decisions that affect the Ferengi must meet the approval of the Grand Nagus whose power is supported by the Ferengi Bill of Opportunities and backed by the Board of Liquidators.
The Grand Nagus possesses the ability to appoint a Grand Proxy to act in his name in matters which he is unable or unwilling to deal with personally. (VOY: "False Profits")
The Nagus's offices are located in the Tower of Commerce on Ferenginar where he presides over the Alliance from the Chamber of Opportunity. Petitioners regularly seek to speak to the Nagus to solicit advice on business ventures and decisions. In doing so they are required to pay their respects, literally. After doing so their petition is summarized by the First Clerk before the Nagus reaches a decision.
The Nagus resides in the Nagal Residence, which is said to contain latinum-plated fixtures. The Nagus always carries a staff and it is traditional for the Ferengi to kiss it upon meeting him.
Rom became Grand Nagus in late 2375, succeeding Zek. (DS9: "The Dogs of War")