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His Dark Materials - Season 3 - Sian Clifford & Jonathan Aris Joins Cast

Fleabag star Sian Clifford and Sherlock actor Jonathan Aris are joining BBC and HBO fantasy series His Dark Materials.

The duo are joining as Agent Salmakia and Commander Roke, respectively, both ‘Gallivespian Spies’. In the Philip Pullman story, Gallivespians are tiny humanoids who evolved in their native universe’s earth.