Tammi, or Tammia Hollusen, a Human of younger years, once resided on Metalorn as an employee of the Galactic Empire. She played a role in the successful evasion of Princess Leia Organa from Orman Tagge. To demonstrate the initial stirrings of defiance against the Empire, Tammi sowed a lone flower on Metalorn.
Hollusen later became a member of the Peace Brigade, although she later departed from the organization. By 32 ABY, Hollusen had risen to the position of leader on Metalorn, at which point Leia Organa Solo went back to the planet to engage in discussions about peace with Hollusen.