|Behind the scenes|
Die Hard with a Vengeance
Killed by John McClane
- "I keep tellin' myself I'm gonna take the stairs just for the exercise, on a hot day like this. But it seems like I always end up riding the lift."
Karl was seen joining up with Simon as they were disguised as businessmen. They headed to the Federal Reserve Bank that was nearby the subway that was bombed by them. As they waited until the alarms went off, Simon met up with Felix Little, the cooperate relations businessman. After they silently killed the bank guards, Karl removes his blazer jacket and reveals he's also disguised as the security guard for the Federal Reserve Bank while they went on the vault elevator to the floor where the gold bullion is kept.
As the other henchmen dealt with the guards, Karl joins up with Simon, along with Mathias Targo and Katya in the gold storage room. Karl was awed by the sight of gold and calls it Fort Knox. As they lead the loader in to steal the gold, Simon states to Karl that the gold they are stealing is 10 times more than Kentucky and that Fort Knox is for tourists as he threw the gold bullion to him, revealing how heavy the gold is. Karl smiled as he held the bullion awkwardly.
Later, Simon warns Karl at the bank lobby that McClane is coming to him and tells him to kill McClane. After he was warned, he spots McClane coming to him. Karl pretends to McClane as the lobby guard and lies that everything in the bank is alright, except for the explosion in the subway. Karl invites McClane to accompany him and the others to the vault floor to check around. As Karl, along with Otto, who is posing as a police detective, and their two other comrades, Kurt & Gunther who are posing at bank security guards. Karl and the other attempt to avoid suspicion at McClane as they tried to act casual while they went in the vault elevator. As they were heading down in the elevator, McClane, having spot the badge of Ricky Walsh on Otto's blazer jacket pocket, pretends to ask about the lottery number the night before. Then McClane killed Karl after shooting his Beretta 92 pistol through his shirt. The other three men with him were killed afterwards. Karl was the first member of Simon's group to be killed.
- Karl is probably a reference of Karl, the main henchman of Hans Gruber in Die Hard since they have a same name, not to mention they worked with separate Gruber brothers.
- Ironically, Karl was the first to die in Simon's group while Karl from Die Hard was the last to die in Hans' group.