An interview with Alex Vlahos who plays Mordred in BBC One's Merlin. Q: Where do we find ... over the role from that excellent young actor Asa Butterfield. Mordred is still a druid, but now ...

A: We pick up with him at the beginning of the series, and see that he's older than that when we last met him – I've taken over the role from that excellent young actor Asa Butterfield. Mordred ...