Synonyms of 'Judas'
The first time I left Sheffield Wednesday, they accused me of being a Judas.
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a traitor and betrayer
He was condemned as a liar, cheat and deceiver.
con man (informal)
snake in the grass
grifter (slang , US , Canadian)
rorter (Australian , slang)
A renegade is a person who abandons the religious, political, or philosophical beliefs that he or she used to have, and accepts opposing or different beliefs.
He was a renegade - a traitor.
Thesaurus for Judas from the Collins English Thesaurus
If you accuse someone of being a Judas , you are accusing them of being deceitful and betraying their friends or country.