Michael Sheen in Guatemala
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Actor Michael Sheen has no wish to become a politician

Actor Michael Sheen says he has no wish to become a politician, despite speaking out on a range of causes.

He told BBC Wales parliamentary correspondent David Cornock he was surprised his speech at a St David's Day rally in support of the NHS in Tredegar had become an internet sensation.

Sheen also discussed his work with children in Guatemala as a Unicef ambassador.

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