played by D.J. COTRONA
A professional thief and a modern-day desperado. When we meet Seth, his brother Richie has just broken him out of prison and they've pulled off a bank heist. Smooth-talking Seth can always charm his way out of trouble, but when he notices his brother is losing his grip on reality, he has to figure out a plan to bring him back. Richie saved Seth so many times now it's time for Seth to pay him back, even if that means making a deal with a shady cartel boss, Carlos Madrigal.
played by ZANE HOLTZ
One half of the legendary Gecko Brothers – who have pulled thirty-six jobs for various criminal outfits across the country – Richie used to be the rock, the brains of the outfit. He planned the jobs and executed them with precision. Now, he's falling victim to something he can't control, something insidious. It's eating away at Richie's soul and turning him wrong – giving him a taste for killing and a window into something impossibly dark.
played by EIZA GONZÁLEZ
The mistress of evil, its most loyal guardian, and the central figure in an ancient cult of bloodsucking vampires known in our realm as culebras. You might have envisioned her dancing with a boa constrictor curled around her body. Santánico has a certain effect on people – her "gifts" allow her to stare deep into a person's soul and know their deepest desires. She also might be checking to see if you're worth feeding on.
played by Jesse Garcia
A Texas Ranger on Seth and Richie's tail, looking to avenge the death of his mentor, father figure, and best friend, Earl McGraw who died by Richie's hand. The young husband, father and lawman sets out on a mission of revenge that leads him to sacrifice everything – his career, the "star," maybe even his own soul – to take the Geckos down.
played by MADISON DAVENPORT
Kate is trying to pick up the pieces after the death of her mother in a car accident. She struggles to understand why Jacob has lost his faith in God. Kate wants to save her father, same way Seth wants to save his brother – she'd just rather do it without the long family trip to nowhere.
played by BRANDON SOO HOO
Jacob's adopted Chinese son. He'll grow from boy to man in the course of the series, but he'll also discover an inner strength – and power – he never knew he had.
played by WILMER VALDERRAMA
A criminal overlord and brutal enforcer who first tells Seth about a mysterious paradise – a place in Mexico called "El Rey" – where he and Richie can find eternal happiness. Though on the surface it seems Carlos is a typical cartel boss involved in a world of contraband and murder, Carlos is actually immersed in something darker, supernatural and ancient.
played by ROBERT PATRICK
A fallen preacher who has suddenly decided to buy a Winnebago and strike out on a "family bonding" adventure with his kids, Kate and Scott. Jacob is a father out to protect his family – but he's also a man of God whose faith is slipping. He believes this trip to Mexico will heal the family and unburden him of the dark secrets he is carrying.
played by Don Johnson
Earl McGraw is a Texas Ranger whose commitment to the job strained his relationship with his wife and daughter. But Earl's been given a second chance at fatherhood with his partner, Freddie Gonzalez, whom he schools in the ways of right and wrong - and upholding the law. His mantra: "Rangers don't need to go lookin' for trouble. Trouble finds them."
played by ADRIANNE PALICKI
Vanessa is a sexy, dangerous woman from Seth Gecko's past - aren't they all? – a 21st century Veronica Lake who had her own successful run in the criminal underworld. She's brash and uncompromising, with a talent for planning jobs and making scores.
played by JAKE BUSEY
Professor Aiden Tanner is an archeology professor at Alamo State who counsels Ranger Freddie Gonzalez on a series of gruesome murders that may be connected to a bloody cartel. His expertise provides a window on the mythical forces at play in Dusk. He is fascinated by the history - and the power - of the dark legends.