Board Thread:Spoilers!/@comment-25375217-20170815201511/@comment-1916997-20171010175542

I don't think Marius is Prince DeathByTremaine's brother because Tremaine said younger brother, and Kevin Ryan (Marius's) actor looks older, plus he doesn't look that similar to Liam (Prince DBT). If anyone is playing the younger brother, out of the people we know have been cast, I would guess Julian Haig.