The guy who created that freaky King Cake Baby character -- the New Orleans Pelicans mascot -- claims the movie "Happy Death Day" jacked his freaky face ... and now he's suing to get revenge.
The man behind the suit is Jonathan Bertuccelli -- an artist who created the intentionally weird looking mascot back in 2009. It's been seen everywhere from NBA games to Mardi Gras and even "Jimmy Kimmel Live."
Suit - Bertuccelli - Killer - Movie - Death
In his suit, Bertuccelli claims he was shocked when he saw the killer in the movie "Happy Death Day" and the upcoming sequel "Happy Death Day 2U" wore a mask that looked just like his "KCB" mask.
Bertuccelli says NO ONE involved in the movie ever called him up to ask for permission -- or even credited him -- and...