Remus is a character featured in RAGE. He is one of the first residents of Subway Town that Nicholas Raine has contact with, as he is just across the path from Destinee when taking the first steps into the town. He wears a mask similar to Friday's because he had problems radioactivity.
He will usually remain around the entrance to the "Fez" Bar, leaning on a barrel of some sort.
He has a few lines of dialogue mentioning the situation in Subway Town, but besides that he has no interaction with the protagonist.