shady character

and a suspicious character

Fig. an untrustworthy person; a person who makes people suspicious. There is a suspicious character lurking about in the hallway. Please call the police.

Common Names:

Name	Pronounced	Usage
Silja	SEEL-yah	Finnish
Herberto	er-BER-to (Spanish)	Spanish, Portuguese
Nanako	nah-nah-ko	Japanese
Filomena	fee-lo-ME-nah (Italian)	Italian, Spanish, Portuguese, Dutch
Gomer	GO-mər (English)	Biblical
Juvenal	JOO-və-nahl (English)	History