
But he wasn’t so anonymous, so UNKNOWN.
Money Heist Season 1, Episode 8

It's just the UNKNOWN thieves
we need to worry about now.
Game of Thrones Season 2, Episode 8

somewhere UNKNOWN.
And most likely...
Money Heist Season 3, Episode 2

Unknown caller.
It's got to be them.
The Big Bang Theory Season 12, Episode 23

I'm not comfortable
bringing in UNKNOWN entities
into our operation.
Breaking Bad Season 2, Episode 5