Bill Tanner asks Miss Moneypenny to send a copy of SPECTRE's ransom demand letter to Mathis at the Deuxième Bureau. With the help of Bond, it was Mathis who captures the SMERSH villain Rosa Klebb and provides CPR to keep Bond alive after he was poisoned by her. Later, it is been revealed that he has been promoted to the head of the Deuxième Bureau. He is reassigned to work with Bond at the time of events in Casino Royale, where he poses as a radio salesman, helping Bond out and introducing him to Vesper Lynd. In Casino Royale it is stated that he met Bond on assignment prior to World War II, in Monte Carlo, as Bond was trying to crack down a group of Romanians cheating at local casino with the use of invisible ink.
