The cast of kaos tv series is split across three story worlds: the Olympian gods, the Underworld, and the mortals whose lives get dragged into prophecy. Jeff Goldblum plays Zeus, Janet McTeer plays Hera, David Thewlis plays Hades, and Aurora Perrineau leads much of the human side as Riddy. If you are checking the names before watching, start with Zeus, Riddy, Orpheus, Hades, and Prometheus; those roles make the show's main conflicts much easier to follow.
Who Plays the Greek Gods in KAOS?
The main Greek gods in KAOS are played by Jeff Goldblum, Janet McTeer, Cliff Curtis, and Nabhaan Rizwan. This is the side of the cast to focus on if you want to understand the power structure of the show: Zeus rules, Hera manages and challenges that world, Poseidon keeps his distance until he cannot, and Dionysus brings a younger, more restless energy.
Jeff Goldblum as Zeus
Jeff Goldblum plays Zeus, the king of the gods and the most dangerous presence in KAOS. His Zeus is charming enough to be entertaining, but paranoid enough to make every scene feel unstable.
The important detail is his fear of a prophecy. A small sign on his body sends him spiraling, and that panic turns a powerful ruler into someone who starts seeing threats everywhere. Goldblum's performance works because Zeus is not just loud or cruel; he is vain, funny, needy, and frightening in the same breath.
Janet McTeer as Hera
Janet McTeer plays Hera, Zeus's wife and queen of the gods. She is not written as a background spouse or a simple jealous figure; she understands power, image, and survival inside Olympus better than almost anyone.
McTeer gives Hera a controlled, watchful quality. When Zeus becomes more erratic, Hera's scenes often show the cost of staying close to power while also trying to protect her own authority.
Cliff Curtis as Poseidon
Cliff Curtis plays Poseidon, Zeus's brother and the god of the sea. At first, Poseidon seems more relaxed than the rest of the family, living with comfort and distance rather than urgency.
That distance is part of what makes him useful to the story. If Zeus represents panic and Hera represents strategy, Poseidon shows how privilege can look calm until the family crisis reaches him too.
Nabhaan Rizwan as Dionysus
Nabhaan Rizwan plays Dionysus, Zeus's son and the god linked with pleasure, partying, and excess. KAOS gives him more than the usual "party god" treatment: he wants to be taken seriously, but he is also impulsive and unsure where he fits.
Who Plays the Underworld Characters in KAOS?
The Underworld cast brings a very different rhythm to KAOS. David Thewlis, Rakie Ayola, Debi Mazar, and Misia Butler play characters connected to death, memory, work, and unfinished lives. This part of the show is useful if you want to understand how the series turns mythology into something oddly bureaucratic and emotionally grounded.
David Thewlis as Hades
David Thewlis plays Hades, ruler of the Underworld and brother to Zeus and Poseidon. His version of Hades is not the fiery villain some viewers might expect; he feels tired, practical, and trapped in the work of keeping death organized.
That makes Hades one of the show's more grounded gods. Thewlis plays him with restraint, so the character's burden often feels more interesting than any obvious display of power.
Rakie Ayola as Persephone
Rakie Ayola plays Persephone, queen of the Underworld and Hades's wife. She comes across as clear-eyed and capable, with a steadiness that contrasts sharply with the emotional chaos around Zeus.
Her scenes are worth paying attention to if you like the show's quieter power dynamics. Persephone is not there just to echo Hades; she has judgment, patience, and a strong sense of what the gods above fail to understand.
Debi Mazar as Medusa
Debi Mazar plays Medusa, reworked here as an Underworld figure rather than only a monster from a famous myth. In KAOS, she works within Riverbank Management at the Lethe, which is exactly the kind of strange, modern twist the series enjoys.
Mazar's sharp screen presence helps the role stand out quickly. Medusa becomes a good example of how the show uses familiar names without simply replaying the most obvious version of the myth.
Misia Butler as Caeneus
Misia Butler plays Caeneus, one of the most emotionally grounded characters in the Underworld storyline. He is not introduced as a ruler or a god, which makes him a useful entry point for viewers who want someone more human to follow.
Caeneus's importance grows as the story moves forward. If you are watching for the first time and trying not to get lost in the big mythology pieces, his scenes are a good place to pay close attention because they connect the supernatural setting to personal courage and identity.
Who Are the Mortal Characters in KAOS?
The mortal characters keep KAOS from becoming only a show about gods arguing on Olympus. Aurora Perrineau, Killian Scott, Leila Farzad, and Stanley Townsend play people whose choices, grief, ambition, and family damage matter just as much as divine prophecy.
Aurora Perrineau as Riddy
Aurora Perrineau plays Riddy, also known as Eurydice in the show's mythological frame. She is married to Orpheus, but the relationship is not the simple grand romance people might expect from the myth.
Riddy is unhappy, restless, and searching for a life that feels like her own. Perrineau keeps the role grounded, which matters because Riddy becomes one of the clearest ways into the show's bigger ideas about love, death, and choice.
Killian Scott as Orpheus
Killian Scott plays Orpheus, reimagined as a famous musician. He loves Riddy, but the show does not present that love as automatically noble or uncomplicated.
The celebrity angle is a smart update because Orpheus is always performing in some way: on stage, in public, and inside his marriage. Scott makes him charismatic and frustrating, which keeps the character from becoming a flat romantic hero.
Leila Farzad as Ari
Leila Farzad plays Ari, the daughter of President Minos in Krete. Her story is tied to family trauma, guilt, and the pressure of living inside a political household where private pain cannot stay private.
Ari is one of the better characters to follow if you want the mortal storyline to feel bigger than romance. Farzad plays her with tension and restraint, showing someone who begins in a trapped position but is pushed toward harder choices.
Stanley Townsend as Minos
Stanley Townsend plays Minos, the president of Krete and Ari's father. He is severe, ambitious, and willing to let power justify terrible decisions.
Minos matters because he proves the gods are not the only problem in this world. Mortals can build their own systems of control, and Townsend gives the character enough cold conviction to make that threat feel real.
Who Are the Supporting Cast Members?
The supporting cast members in KAOS are not just extra names around the main ensemble. Stephen Dillane, Billie Piper, and Suzy Eddie Izzard carry some of the show's most important mythology threads: resistance, prophecy, truth, and fate.
Stephen Dillane as Prometheus
Stephen Dillane plays Prometheus, Zeus's old friend and one of his most meaningful enemies. The show keeps the mythic idea of Prometheus as a punished figure connected to humanity, but uses him as a calm, persistent voice against divine control.
Dillane is especially strong in roles built around quiet defiance. Here, that stillness gives Prometheus weight: he does not need to dominate the room to make Zeus's power look fragile.
Billie Piper as Cassandra
Billie Piper plays Cassandra, a Trojan refugee in Krete who carries the familiar curse from mythology: she tells the truth, but people do not believe her.
That role is easy to understand even if you know nothing about the original myth. Cassandra is the person seeing the danger before others are ready to admit it, and Piper gives her enough urgency to make that frustration land.
Suzy Eddie Izzard as Lachesis
Suzy Eddie Izzard plays Lachesis, also called Lachy, one of the Fates. Her role matters because fate sits outside the usual family politics of Olympus.
Zeus can threaten, command, and manipulate many people, but the Fates represent a different kind of power. Izzard plays Lachesis with a calm, unsettling presence, which makes the prophecy feel less like gossip and more like something already moving.
Conclusion
The easiest way to remember the cast of kaos tv series is by grouping them by function: Goldblum, McTeer, Curtis, and Rizwan drive the divine family drama; Thewlis, Ayola, Mazar, and Butler shape the Underworld; Perrineau, Scott, Farzad, and Townsend keep the story tied to human choices. That split makes the ensemble less overwhelming and helps the show's mix of myth, dark comedy, and modern drama feel much easier to track.