the joker in the pack

someone or something that could change a situation in a way that you do not expect The independent candidate is the joker in the pack in this election.

Common Names:

Name	Pronounced	Usage
Orlando	[ɔ:'lændəu]
Ophelia	o-FEEL-yə (English)	English, Literature
Alisha	ə-LISH-ə, ə-LEE-shə	English
Balbinus	-	Ancient Roman
Erazem	-	Slovene
Kalpana	-	Indian, Hindi, Marathi, Tamil, Kannada, Telugu, Nepali