John "Oz" Osweiller is a main character on TNT's Snowpiercer. He is portrayed by Sam Otto.
He is a young brakeman and police-type figure of the train.
History
Background
Throughout The Series
Season 1
In Prepare to Brace, Oz gives Patterson, a Tail passenger, medicine in exchange for a blowjob. However, he doesn't give the passenger what he originally promised instead only giving him Kronole which Oz states numbs the pain of "everything."