Lasombra

Lasombra is an antagonist of the Hey Arnold cartoon series. He first briefly appeared in a flashback in the hour long Hey Arnold! episode "The Journal" and is the main antagonist of the 2017 TV film Hey Arnold!: The Jungle Movie.

He is a river pirate who sought to steal the Corazon (a highly valuable ancient artifact) from the Green-Eyed People tribe and was successful until Miles and Stella Shortman stole it away from him. His ongoing quest to retrieve the stone came to fruition as he lures Miles and Stella’s son Arnold there while posing as their friend Eduardo under the pretense of helping Arnold find Miles and Stella, only to take him and his class hostage and threaten them all.