Commander Nolan Grey is a recurring character on TNT's Snowpiercer. He is portrayed by Timothy V. Murphy.
He is a brilliant tactician, hardened leader, and former Special Forces, British SAS who commanded men before the Freeze. He relishes keeping things in order and getting his hands dirty in combat.
History
Background
Grey is a widower whose wife passed two years ago.
Throughout The Series
Playing Ruth
Nolan initially portrays himself as the obedient soldier committed to service. Eventually, he becomes weary of Melanie Cavill and the amount of power she holds on Snowpiercer.
In an effort to displace Melanie, he grows closer with Ruth and asks her out on a date. When they begin the date, they are ambushed by Lilah and Robert Folger, and it is revealed to be a set up by Nolan to get an audience with Ruth. Nolan — along with Lilah and Robert — suggest usurping Melanie and replacing her with Ruth; Ruth is flabbergasted by the idea and leaves at once to alert Melanie.[1]