A Federation Councilor is the represenative of each of the United Federation of Planets' full member worlds ot the Federation Council.
T'Pau of Vulcan was the only person to have refused a seat on the Council as of 2267.
Jonathan Archer - Earth - 2175 to 2183
Jaresh-Inyo - Grazer - 2360s
Pol - Alesia Prime - 2371