After Bond survives Le Chiffre’s torture, his suspicions intensify when Mathis tries to extract information from him as he recovers. When Bond tries to rescue the kidnapped Vesper, Le Chiffre captures him and remarks, “your friend Mathis is really my friend Mathis.” This is a lie told to conceal that Vesper is the real traitor. Mathis also knows the rules of Texas Hold ‘Em poker well enough to explain the game to Treasury official Vesper Lynd (Eva Green). Mathis gives Bond a bugging device that Bond slips into Le Chiffre’s inhaler.
Unable to outbid international criminal Le Chiffre (Mads Mikkelsen) for the Chief of Police’s services, Mathis arranges for the Chief’s arrest.
In Casino Royale, René Mathis (Giancarlo Giannini) is 007’s (Daniel Craig) contact in Montenegro. Insider Focus Of The Week: René Mathis A look at Bond’s ally