on  march  matthias schoenaerts was announced in the cast reteaming with vinterberg after far from the madding crowd  colin firth joined the cast on  may  léa seydoux joined the cast on  february  in the role of tanya the wife of mikhail kalekov a russian navy captain-lieutenant played by matthias schoenaerts rachel mcadams was once in talks for the role of tanya deadlinecom also reported that firth will play david russell a british naval commander who goes against russia’s warnings so he can try to save the men on the kursk