Casshern Sins
After the murder of Luna, the robot society that rules the planet starts to rust and decay. Death and despair spread through the land like wildfire. The only one unaffected by the affliction that becomes known as "The Ruin" is Luna's assassin, Casshern. Unable to remember if he really triggered this capital sin against the entire mechanized civilization, Casshern embarks on a journey to unravel the mystery that connects him, Luna, and the plague.
Top cast
Below are the streaming services currently carrying the TV show “Casshern Sins” in the United Kingdom, along with how each offers it (subscription, buy, or rent) and a direct link. Licensing differs by market, so availability in the United Kingdom can differ from other countries.
Where to watch Casshern Sins in United Kingdom
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Not currently available on the supported providers in United Kingdom.
Availability can change as licenses rotate — confirm on the provider’s page before subscribing. Last checked: 1 Sept 2026.