Riverdale's Henderson Wade has been cast as Matt Cable for DC Universe's Swamp Thing, according to Deadline. Jennifer Beals was previously announced as playing Lucilla Cable, the mother to Cable's reported character. Both characters are playing sheriffs, with Wade's character reporting to Beals'.
In comic books, Matt Cable was a federal agent assigned to protect Alec Holland - and fails, with Holland falling into the swamp and transforming into the Swamp Thing. Cable ended up marrying Swamp Thing's one-time lover Abby Arcane, but eventually suffers a coma after being possessed by Anton Arcane and dies. His story continues, however, in Sandman as Morpheus eventually takes his spirit and gives him new life as the god of dreams' raven, Matthew.
Swamp Thing is anticipated to debut sometime in 2019 on the DC Universe streaming service.