It's dressed as Dalí.
Money Heist Season 3, Episode 8
"They’ll get to the basement’s catch basin
dressed with red overalls and Dalí masks."
Money Heist Season 1, Episode 5
-He’s wearing a face mask of Dalí.
-It’s a robber.
Money Heist Season 1, Episode 12
That we're adorable teddy bears
with Dalí masks?
Money Heist Season 3, Episode 5
We are Dalí..."
Money Heist Season 3, Episode 2