[Source] Arnolt Malliger is a secondary character in The Witcher 2: Assassins of Kings. He is a Kaedweni spy living at Bernard Loredo's residence. You can meet him the first time when visiting commandant Loredo in the night, during the Indecent Proposal quest. Later on, if you side with Vernon Roche, you discover what is the deal between Loredo and Kaedwen and that Arnolt was killed while being interrogated by Roche.