(lone) voice in the wilderness

One who expresses an unpopular opinion or idea. She felt like a voice in the wilderness as she tried to warn others about the impending economic collapse. He was a lone voice in the wilderness as he tried to expose the vast corruption within the organization.

Common Names:

Name	Pronounced	Usage
Italo	-	Italian
Malia	-	Hawaiian
Chuck	CHUK	English
Joaquim	-	Portuguese, Catalan
Wieland	-	German, Germanic Mythology
Wenonah	wə-NON-ə	English (Rare)