Pennywise's true form in IT: Welcome to Derry is a mind-obliterating display called the Deadlights, but there's more to It than that.

Editor's note: The below contains spoilers for the IT: Welcome to Derry finale. Stephen King's IT is regarded by many as his scariest work thanks to its villain, a killer clown named Pennywise.

IT: Welcome to Derry recently confirmed that the clown is the stolen face of a real man named Bob Gray. Gray was a circus performer devoured by the entity in 1908, leaving behind an orphaned daughter, ...

Bill Skarsgård's Pennywise leans towards camera in closeup in It Welcome to Derry - HBO Max Throughout "It: Welcome to Derry" Bill Skarsgård's Pennywise has exposed numerous victims to the Deadlights.