Richard Dormer. Actor: '71: Hinter feindlichen Linien. Richard Dormer is an actor, playwright and screenwriter from Northern Ireland. He is best known for his roles as Beric Dondarrion in the HBO television series Game of Thrones and Dan Anderssen in Sky Atlantic's Fortitude. Dormer was born in Portadown, Northern Ireland. He studied at the RADA school of acting in London.