Ludwig (Bride of Frankenstein)
Ludwig is one of Dr. Pretorius' two assistants who appear in Bride of Frankenstein. He is played by Ted Billings. He and Karl helped Pretorius rob graves for the parts needed to create the Bride of Frankenstein, and then assisted Pretorius and Henry Frankenstein in the actual creation of the Bride.
Ludwig completely disappears from Bride of Frankenstein towards the end of the film. The last time he's seen is when he watches the Frankenstein Monster kill Karl, and it is unknown if he was killed too.
Read more about this topic: Minor Characters In Universal Monsters