This is Richard's first scene in Season 7 of "Spooks". Called MI-5 in the US. Lucas North has been in a Russian prison for 8 years and is being quietly exchanged. Richard lost about a stone's weight to look like this.
Lucas North is released from a Russian Prison after 8 years. He staggers a bit as he walks to the MI-5 car from the Russian one. Richard lost about 20 lbs to appear the emaciated. Richard Armitage as Lucas North, Spooks...BBC