dodgy character

Translations
сомнительный персонаж
Be careful, he seems like a dodgy character.
Будь осторожен, он кажется сомнительным персонажем.
Definitions
A dodgy character refers to a person who is suspicious, untrustworthy, or likely to engage in dishonest or unethical behavior. This term often implies that the individual may be involved in illegal activities or has a questionable reputation.