List of unnamed Sheliak.
The director contacted the USS Enterprise-D in 2366 and demanded that a Human colony on Tau Cygna V be removed, as this planet was ceded to the Sheliak Corporate in the Treaty of Armens.
He refused to give Captain Picard the three weeks needed to transport the colonists off the planet and threatened to kill all the colonists if they were not removed.
Picard ultimately requested third party arbitration, in accordance with the treaty. He requested the Grizzelas, who were in the middle of their hibernation cycle for another six months. The director agreed to give him the three weeks. (TNG: "The Ensigns of Command")
The Sheliak colony ship approaching Tau Cygna V in 2366 contained what its director referred to a the membership, which were to disembark on the planet. (TNG: "The Ensigns of Command")
These characters were only mentioned in dialogue.