nieznany osobnik

An unknown individual, likely Upsall, offered to pay their fine if he could be allowed to speak with them.

He leads a gang, but appears to be backed by unknown individuals.

This unknown individual was undoubtedly a man with recognized financial contacts.

Now he was controlled by some unknown individual, who seemed nothing more than a silent monster of the night.

Upon arriving at the palace, unknown individuals within the building opened fire on the visitors.

Much of his work of these years remains with unknown individuals.

Some unknown individual or race might be doing this, but it is difficult to see how they benefit.

She herself has received death threats from unknown individuals on several occasions.

Can I afford to keep hands off while two unknown individuals take the law into their own grasp?

The presence of that unknown individual had been one reason for Mazda's announcement.