Crownus is a titan and Cronos' counterpart from the 2017 Continuum.
Crownus was among the Titans fought and defeated by the Greek gods, including Zeus and Storkules' mother. Imprisoned in the Underworld, he eventually escaped in 2020 when Zeus tricked Storkules into freeing him. The gigantic Titan proceeded to capture and swallow Della Duck, Donald Duck, Scrooge McDuck, Selene, Storkules, and Zeus despite their efforts against him. Spotting Huey, Dewey, and Louie Duck and Webby Vanderquack heading for Zeus' laurel wreath, he prepared to intercept him only to be confronted and stopped in his tracks by Daisy Duck, who matched his furious roar with her own. This enabled the kids to retrieve the wreath, use its power to defeat Crownus, and rescue his prisoners, with Zeus tipping him back into the chasm from which he had escaped the Underworld...only to stumble in after him.
Behind the scenes
Crownus appears for the first time in New Gods on the Block, the fifteenth episode of Season 3 of DuckTales 2017. He is quite obviously based on Cronos, father of the first Olympian gods in Greek mythology. Notably, his stomach acts as a prison, referencing the fact that Cronos swallowed his first five children, who due to being immortal remained alive but captive in his belly until being freed by Zeus and led in rebellion against him. His name is an obvious play on the name Cronos and the species name crow.