Preem Palver was First Speaker of the Second Foundation during the conflict between it and the First Foundation. He was instrumental in returning the galaxy to the Seldon Plan, first by Arkady Darrell (disguised as a trader), then by fooling the First Foundation into a false victory by convincing them they had wiped out the Second Foundation, while in reality all they had done was kill a small portion of its members.

Restored the Seldon Plan after a Crisis, He alone was able to personally alter the course of the Seldon plan, like very few characters in the Foundation series.