Hester's husband, Roger Chillingworth, speaks on her behalf at various points in Nathaniel Hawthorne's novel "The Scarlet Letter." He defends her during her trial and tries to mitigate the harsh judgment she faces from the townspeople. However, his motives are complex and driven by his own desire for revenge.
An advocate.
President President
A spokesperson (or spokesman or spokeswoman) speaks on behalf of a group.
Someone who speaks on behalf of someone
Party Leader
The Majority Leader is speaks on behalf of the majority party in the House whereas the Minority Leader speaks for the minorty party.
The surname Hester has the plural Hesters (two Hesters, or the Hester family).
The Majority Leader is speaks on behalf of the majority party in the House whereas the Minority Leader speaks for the minorty party.
The White House Press Secretary speaks on behalf of the of the POTUS in all routine matters involving the media. The current White House Press Secretary (serving under President Obama as of February 2010) is Robert Gibbs.
individual who speaks on behalf of a product or service and whose name becomes associated with the product or service.
A prophet is someone who speaks on behalf of God, defends the truth, and works for justice. They are believed to be messengers of God, bringing revelations and guidance to humanity. Examples of prophets include Moses, Jesus, and Muhammad, among others.
It is the same as an advocate: someone who actively supports a cause.